| /* |
| * (C) Copyright IBM Corporation 2004, 2005 |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sub license, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * IBM, |
| * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #include <inttypes.h> |
| #include <assert.h> |
| #include <string.h> |
| |
| #include "glxclient.h" |
| #include "indirect.h" |
| #include <GL/glxproto.h> |
| #include "glxextensions.h" |
| #include "indirect_vertex_array.h" |
| #include "indirect_vertex_array_priv.h" |
| |
| #define __GLX_PAD(n) (((n)+3) & ~3) |
| |
| /** |
| * \file indirect_vertex_array.c |
| * Implement GLX protocol for vertex arrays and vertex buffer objects. |
| * |
| * The most important function in this fill is \c fill_array_info_cache. |
| * The \c array_state_vector contains a cache of the ARRAY_INFO data sent |
| * in the DrawArrays protocol. Certain operations, such as enabling or |
| * disabling an array, can invalidate this cache. \c fill_array_info_cache |
| * fills-in this data. Additionally, it examines the enabled state and |
| * other factors to determine what "version" of DrawArrays protocoal can be |
| * used. |
| * |
| * Current, only two versions of DrawArrays protocol are implemented. The |
| * first version is the "none" protocol. This is the fallback when the |
| * server does not support GL 1.1 / EXT_vertex_arrays. It is implemented |
| * by sending batches of immediate mode commands that are equivalent to the |
| * DrawArrays protocol. |
| * |
| * The other protocol that is currently implemented is the "old" protocol. |
| * This is the GL 1.1 DrawArrays protocol. The only difference between GL |
| * 1.1 and EXT_vertex_arrays is the opcode used for the DrawArrays command. |
| * This protocol is called "old" because the ARB is in the process of |
| * defining a new protocol, which will probably be called wither "new" or |
| * "vbo", to support multiple texture coordinate arrays, generic attributes, |
| * and vertex buffer objects. |
| * |
| * \author Ian Romanick <idr@us.ibm.com> |
| */ |
| |
| static void emit_DrawArrays_none( GLenum mode, GLint first, GLsizei count ); |
| static void emit_DrawArrays_old ( GLenum mode, GLint first, GLsizei count ); |
| |
| static void emit_DrawElements_none( GLenum mode, GLsizei count, GLenum type, |
| const GLvoid *indices ); |
| static void emit_DrawElements_old ( GLenum mode, GLsizei count, GLenum type, |
| const GLvoid *indices ); |
| |
| |
| static GLubyte * emit_element_none( GLubyte * dst, |
| const struct array_state_vector * arrays, unsigned index ); |
| static GLubyte * emit_element_old( GLubyte * dst, |
| const struct array_state_vector * arrays, unsigned index ); |
| static struct array_state * get_array_entry( |
| const struct array_state_vector * arrays, GLenum key, unsigned index ); |
| static void fill_array_info_cache( struct array_state_vector * arrays ); |
| static GLboolean validate_mode(__GLXcontext *gc, GLenum mode); |
| static GLboolean validate_count(__GLXcontext *gc, GLsizei count); |
| static GLboolean validate_type(__GLXcontext *gc, GLenum type); |
| |
| |
| /** |
| * Table of sizes, in bytes, of a GL types. All of the type enums are be in |
| * the range 0x1400 - 0x140F. That includes types added by extensions (i.e., |
| * \c GL_HALF_FLOAT_NV). This elements of this table correspond to the |
| * type enums masked with 0x0f. |
| * |
| * \notes |
| * \c GL_HALF_FLOAT_NV is not included. Neither are \c GL_2_BYTES, |
| * \c GL_3_BYTES, or \c GL_4_BYTES. |
| */ |
| const GLuint __glXTypeSize_table[16] = { |
| 1, 1, 2, 2, 4, 4, 4, 0, 0, 0, 8, 0, 0, 0, 0, 0 |
| }; |
| |
| |
| |
| /** |
| * Initialize vertex array state of a GLX context. |
| * |
| * \param gc GLX context whose vertex array state is to be initialized. |
| * |
| * \warning |
| * This function may only be called after __GLXcontext::gl_extension_bits, |
| * __GLXcontext::server_minor, and __GLXcontext::server_major have been |
| * initialized. These values are used to determine what vertex arrays are |
| * supported. |
| * |
| * \bug |
| * Return values from malloc are not properly tested. |
| */ |
| void |
| __glXInitVertexArrayState( __GLXcontext * gc ) |
| { |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays; |
| |
| unsigned array_count; |
| int texture_units = 1, vertex_program_attribs = 0; |
| unsigned i, j; |
| |
| GLboolean got_fog = GL_FALSE; |
| GLboolean got_secondary_color = GL_FALSE; |
| |
| |
| arrays = calloc( 1, sizeof( struct array_state_vector ) ); |
| state->array_state = arrays; |
| |
| arrays->old_DrawArrays_possible = !state->NoDrawArraysProtocol; |
| arrays->new_DrawArrays_possible = GL_FALSE; |
| arrays->DrawArrays = NULL; |
| |
| arrays->active_texture_unit = 0; |
| |
| |
| /* Determine how many arrays are actually needed. Only arrays that |
| * are supported by the server are create. For example, if the server |
| * supports only 2 texture units, then only 2 texture coordinate arrays |
| * are created. |
| * |
| * At the very least, GL_VERTEX_ARRAY, GL_NORMAL_ARRAY, |
| * GL_COLOR_ARRAY, GL_INDEX_ARRAY, GL_TEXTURE_COORD_ARRAY, and |
| * GL_EDGE_FLAG_ARRAY are supported. |
| */ |
| |
| array_count = 5; |
| |
| if ( __glExtensionBitIsEnabled( gc, GL_EXT_fog_coord_bit ) |
| || (gc->server_major > 1) || (gc->server_minor >= 4) ) { |
| got_fog = GL_TRUE; |
| array_count++; |
| } |
| |
| if ( __glExtensionBitIsEnabled( gc, GL_EXT_secondary_color_bit ) |
| || (gc->server_major > 1) || (gc->server_minor >= 4) ) { |
| got_secondary_color = GL_TRUE; |
| array_count++; |
| } |
| |
| if ( __glExtensionBitIsEnabled( gc, GL_ARB_multitexture_bit ) |
| || (gc->server_major > 1) || (gc->server_minor >= 3) ) { |
| __indirect_glGetIntegerv( GL_MAX_TEXTURE_UNITS, & texture_units ); |
| } |
| |
| if ( __glExtensionBitIsEnabled( gc, GL_ARB_vertex_program_bit ) ) { |
| __indirect_glGetProgramivARB( GL_VERTEX_PROGRAM_ARB, |
| GL_MAX_PROGRAM_ATTRIBS_ARB, |
| & vertex_program_attribs ); |
| } |
| |
| arrays->num_texture_units = texture_units; |
| arrays->num_vertex_program_attribs = vertex_program_attribs; |
| array_count += texture_units + vertex_program_attribs; |
| arrays->num_arrays = array_count; |
| arrays->arrays = calloc( array_count, sizeof( struct array_state ) ); |
| |
| arrays->arrays[0].data_type = GL_FLOAT; |
| arrays->arrays[0].count = 3; |
| arrays->arrays[0].key = GL_NORMAL_ARRAY; |
| arrays->arrays[0].normalized = GL_TRUE; |
| arrays->arrays[0].old_DrawArrays_possible = GL_TRUE; |
| |
| arrays->arrays[1].data_type = GL_FLOAT; |
| arrays->arrays[1].count = 4; |
| arrays->arrays[1].key = GL_COLOR_ARRAY; |
| arrays->arrays[1].normalized = GL_TRUE; |
| arrays->arrays[1].old_DrawArrays_possible = GL_TRUE; |
| |
| arrays->arrays[2].data_type = GL_FLOAT; |
| arrays->arrays[2].count = 1; |
| arrays->arrays[2].key = GL_INDEX_ARRAY; |
| arrays->arrays[2].old_DrawArrays_possible = GL_TRUE; |
| |
| arrays->arrays[3].data_type = GL_UNSIGNED_BYTE; |
| arrays->arrays[3].count = 1; |
| arrays->arrays[3].key = GL_EDGE_FLAG_ARRAY; |
| arrays->arrays[3].old_DrawArrays_possible = GL_TRUE; |
| |
| for ( i = 0 ; i < texture_units ; i++ ) { |
| arrays->arrays[4 + i].data_type = GL_FLOAT; |
| arrays->arrays[4 + i].count = 4; |
| arrays->arrays[4 + i].key = GL_TEXTURE_COORD_ARRAY; |
| |
| arrays->arrays[4 + i].old_DrawArrays_possible = (i == 0); |
| arrays->arrays[4 + i].index = i; |
| |
| arrays->arrays[4 + i].header[1] = i + GL_TEXTURE0; |
| } |
| |
| i = 4 + texture_units; |
| |
| if ( got_fog ) { |
| arrays->arrays[i].data_type = GL_FLOAT; |
| arrays->arrays[i].count = 1; |
| arrays->arrays[i].key = GL_FOG_COORDINATE_ARRAY; |
| arrays->arrays[i].old_DrawArrays_possible = GL_TRUE; |
| i++; |
| } |
| |
| if ( got_secondary_color ) { |
| arrays->arrays[i].data_type = GL_FLOAT; |
| arrays->arrays[i].count = 3; |
| arrays->arrays[i].key = GL_SECONDARY_COLOR_ARRAY; |
| arrays->arrays[i].old_DrawArrays_possible = GL_TRUE; |
| arrays->arrays[i].normalized = GL_TRUE; |
| i++; |
| } |
| |
| |
| for ( j = 0 ; j < vertex_program_attribs ; j++ ) { |
| const unsigned idx = (vertex_program_attribs - (j + 1)); |
| |
| |
| arrays->arrays[idx + i].data_type = GL_FLOAT; |
| arrays->arrays[idx + i].count = 4; |
| arrays->arrays[idx + i].key = GL_VERTEX_ATTRIB_ARRAY_POINTER; |
| |
| arrays->arrays[idx + i].old_DrawArrays_possible = 0; |
| arrays->arrays[idx + i].index = idx; |
| |
| arrays->arrays[idx + i].header[1] = idx; |
| } |
| |
| i += vertex_program_attribs; |
| |
| |
| /* Vertex array *must* be last becuase of the way that |
| * emit_DrawArrays_none works. |
| */ |
| |
| arrays->arrays[i].data_type = GL_FLOAT; |
| arrays->arrays[i].count = 4; |
| arrays->arrays[i].key = GL_VERTEX_ARRAY; |
| arrays->arrays[i].old_DrawArrays_possible = GL_TRUE; |
| |
| assert( (i + 1) == arrays->num_arrays ); |
| |
| arrays->stack_index = 0; |
| arrays->stack = malloc( sizeof( struct array_stack_state ) |
| * arrays->num_arrays ); |
| } |
| |
| |
| /** |
| * Calculate the size of a single vertex for the "none" protocol. This is |
| * essentially the size of all the immediate-mode commands required to |
| * implement the enabled vertex arrays. |
| */ |
| static size_t |
| calculate_single_vertex_size_none( const struct array_state_vector * arrays ) |
| { |
| size_t single_vertex_size = 0; |
| unsigned i; |
| |
| |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( arrays->arrays[i].enabled ) { |
| single_vertex_size += ((uint16_t *)arrays->arrays[i].header)[0]; |
| } |
| } |
| |
| return single_vertex_size; |
| } |
| |
| |
| /** |
| * Emit a single element using non-DrawArrays protocol. |
| */ |
| GLubyte * |
| emit_element_none( GLubyte * dst, |
| const struct array_state_vector * arrays, |
| unsigned index ) |
| { |
| unsigned i; |
| |
| |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( arrays->arrays[i].enabled ) { |
| const size_t offset = index * arrays->arrays[i].true_stride; |
| |
| /* The generic attributes can have more data than is in the |
| * elements. This is because a vertex array can be a 2 element, |
| * normalized, unsigned short, but the "closest" immediate mode |
| * protocol is for a 4Nus. Since the sizes are small, the |
| * performance impact on modern processors should be negligible. |
| */ |
| (void) memset( dst, 0, |
| ((uint16_t *)arrays->arrays[i].header)[0] ); |
| |
| (void) memcpy( dst, arrays->arrays[i].header, |
| arrays->arrays[i].header_size ); |
| |
| dst += arrays->arrays[i].header_size; |
| |
| (void) memcpy( dst, ((GLubyte *) arrays->arrays[i].data) + offset, |
| arrays->arrays[i].element_size ); |
| |
| dst += __GLX_PAD( arrays->arrays[i].element_size ); |
| } |
| } |
| |
| return dst; |
| } |
| |
| |
| /** |
| * Emit a single element using "old" DrawArrays protocol from |
| * EXT_vertex_arrays / OpenGL 1.1. |
| */ |
| GLubyte * |
| emit_element_old( GLubyte * dst, |
| const struct array_state_vector * arrays, |
| unsigned index ) |
| { |
| unsigned i; |
| |
| |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( arrays->arrays[i].enabled ) { |
| const size_t offset = index * arrays->arrays[i].true_stride; |
| |
| (void) memcpy( dst, ((GLubyte *) arrays->arrays[i].data) + offset, |
| arrays->arrays[i].element_size ); |
| |
| dst += __GLX_PAD( arrays->arrays[i].element_size ); |
| } |
| } |
| |
| return dst; |
| } |
| |
| |
| struct array_state * |
| get_array_entry( const struct array_state_vector * arrays, |
| GLenum key, unsigned index ) |
| { |
| unsigned i; |
| |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( (arrays->arrays[i].key == key) |
| && (arrays->arrays[i].index == index) ) { |
| return & arrays->arrays[i]; |
| } |
| } |
| |
| return NULL; |
| } |
| |
| |
| static GLboolean |
| allocate_array_info_cache( struct array_state_vector * arrays, |
| size_t required_size ) |
| { |
| #define MAX_HEADER_SIZE 20 |
| if ( arrays->array_info_cache_buffer_size < required_size ) { |
| GLubyte * temp = realloc( arrays->array_info_cache_base, |
| required_size + MAX_HEADER_SIZE ); |
| |
| if ( temp == NULL ) { |
| return GL_FALSE; |
| } |
| |
| arrays->array_info_cache_base = temp; |
| arrays->array_info_cache = temp + MAX_HEADER_SIZE; |
| arrays->array_info_cache_buffer_size = required_size; |
| } |
| |
| arrays->array_info_cache_size = required_size; |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| */ |
| void |
| fill_array_info_cache( struct array_state_vector * arrays ) |
| { |
| GLboolean old_DrawArrays_possible; |
| unsigned i; |
| |
| |
| /* Determine how many arrays are enabled. |
| */ |
| |
| arrays->enabled_client_array_count = 0; |
| old_DrawArrays_possible = arrays->old_DrawArrays_possible; |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( arrays->arrays[i].enabled ) { |
| arrays->enabled_client_array_count++; |
| old_DrawArrays_possible &= arrays->arrays[i].old_DrawArrays_possible; |
| } |
| } |
| |
| if ( arrays->new_DrawArrays_possible ) { |
| assert( ! arrays->new_DrawArrays_possible ); |
| } |
| else if ( old_DrawArrays_possible ) { |
| const size_t required_size = arrays->enabled_client_array_count * 12; |
| uint32_t * info; |
| |
| |
| if ( ! allocate_array_info_cache( arrays, required_size ) ) { |
| return; |
| } |
| |
| |
| info = (uint32_t *) arrays->array_info_cache; |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( arrays->arrays[i].enabled ) { |
| *(info++) = arrays->arrays[i].data_type; |
| *(info++) = arrays->arrays[i].count; |
| *(info++) = arrays->arrays[i].key; |
| } |
| } |
| |
| arrays->DrawArrays = emit_DrawArrays_old; |
| arrays->DrawElements = emit_DrawElements_old; |
| } |
| else { |
| arrays->DrawArrays = emit_DrawArrays_none; |
| arrays->DrawElements = emit_DrawElements_none; |
| } |
| |
| arrays->array_info_cache_valid = GL_TRUE; |
| } |
| |
| |
| /** |
| * Emit a \c glDrawArrays command using the "none" protocol. That is, |
| * emit immediate-mode commands that are equivalent to the requiested |
| * \c glDrawArrays command. This is used with servers that don't support |
| * the OpenGL 1.1 / EXT_vertex_arrays DrawArrays protocol or in cases where |
| * vertex state is enabled that is not compatible with that protocol. |
| */ |
| void |
| emit_DrawArrays_none( GLenum mode, GLint first, GLsizei count ) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| size_t single_vertex_size; |
| GLubyte * pc; |
| unsigned i; |
| static const uint16_t begin_cmd[2] = { 8, X_GLrop_Begin }; |
| static const uint16_t end_cmd[2] = { 4, X_GLrop_End }; |
| |
| |
| single_vertex_size = calculate_single_vertex_size_none( arrays ); |
| |
| pc = gc->pc; |
| |
| (void) memcpy( pc, begin_cmd, 4 ); |
| *(int *)(pc + 4) = mode; |
| |
| pc += 8; |
| |
| for ( i = 0 ; i < count ; i++ ) { |
| if ( (pc + single_vertex_size) >= gc->bufEnd ) { |
| pc = __glXFlushRenderBuffer(gc, pc); |
| } |
| |
| pc = emit_element_none( pc, arrays, first + i ); |
| } |
| |
| if ( (pc + 4) >= gc->bufEnd ) { |
| pc = __glXFlushRenderBuffer(gc, pc); |
| } |
| |
| (void) memcpy( pc, end_cmd, 4 ); |
| pc += 4; |
| |
| gc->pc = pc; |
| if ( gc->pc > gc->limit ) { |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| } |
| |
| |
| /** |
| * Emit the header data for the GL 1.1 / EXT_vertex_arrays DrawArrays |
| * protocol. |
| * |
| * \param gc GLX context. |
| * \param arrays Array state. |
| * \param elements_per_request Location to store the number of elements that |
| * can fit in a single Render / RenderLarge |
| * command. |
| * \param total_request Total number of requests for a RenderLarge |
| * command. If a Render command is used, this |
| * will be zero. |
| * \param mode Drawing mode. |
| * \param count Number of vertices. |
| * |
| * \returns |
| * A pointer to the buffer for array data. |
| */ |
| static GLubyte * |
| emit_DrawArrays_header_old( __GLXcontext * gc, |
| struct array_state_vector * arrays, |
| size_t * elements_per_request, |
| unsigned int * total_requests, |
| GLenum mode, GLsizei count ) |
| { |
| size_t command_size; |
| size_t single_vertex_size; |
| const unsigned header_size = 16; |
| unsigned i; |
| GLubyte * pc; |
| |
| |
| /* Determine the size of the whole command. This includes the header, |
| * the ARRAY_INFO data and the array data. Once this size is calculated, |
| * it will be known whether a Render or RenderLarge command is needed. |
| */ |
| |
| single_vertex_size = 0; |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| if ( arrays->arrays[i].enabled ) { |
| single_vertex_size += __GLX_PAD( arrays->arrays[i].element_size ); |
| } |
| } |
| |
| command_size = arrays->array_info_cache_size + header_size |
| + (single_vertex_size * count); |
| |
| |
| /* Write the header for either a Render command or a RenderLarge |
| * command. After the header is written, write the ARRAY_INFO data. |
| */ |
| |
| if ( command_size > gc->maxSmallRenderCommandSize ) { |
| /* maxSize is the maximum amount of data can be stuffed into a single |
| * packet. sz_xGLXRenderReq is added because bufSize is the maximum |
| * packet size minus sz_xGLXRenderReq. |
| */ |
| const size_t maxSize = (gc->bufSize + sz_xGLXRenderReq) |
| - sz_xGLXRenderLargeReq; |
| unsigned vertex_requests; |
| |
| |
| /* Calculate the number of data packets that will be required to send |
| * the whole command. To do this, the number of verticies that |
| * will fit in a single buffer must be calculated. |
| * |
| * The important value here is elements_per_request. This is the |
| * number of complete array elements that will fit in a single |
| * buffer. There may be some wasted space at the end of the buffer, |
| * but splitting elements across buffer boundries would be painful. |
| */ |
| |
| elements_per_request[0] = maxSize / single_vertex_size; |
| |
| vertex_requests = (count + elements_per_request[0] - 1) |
| / elements_per_request[0]; |
| |
| *total_requests = vertex_requests + 1; |
| |
| |
| __glXFlushRenderBuffer(gc, gc->pc); |
| |
| command_size += 4; |
| |
| pc = ((GLubyte *) arrays->array_info_cache) - (header_size + 4); |
| *(uint32_t *)(pc + 0) = command_size; |
| *(uint32_t *)(pc + 4) = X_GLrop_DrawArrays; |
| *(uint32_t *)(pc + 8) = count; |
| *(uint32_t *)(pc + 12) = arrays->enabled_client_array_count; |
| *(uint32_t *)(pc + 16) = mode; |
| |
| __glXSendLargeChunk( gc, 1, *total_requests, pc, |
| header_size + 4 + arrays->array_info_cache_size ); |
| |
| pc = gc->pc; |
| } |
| else { |
| if ( (gc->pc + command_size) >= gc->bufEnd ) { |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| |
| pc = gc->pc; |
| *(uint16_t *)(pc + 0) = command_size; |
| *(uint16_t *)(pc + 2) = X_GLrop_DrawArrays; |
| *(uint32_t *)(pc + 4) = count; |
| *(uint32_t *)(pc + 8) = arrays->enabled_client_array_count; |
| *(uint32_t *)(pc + 12) = mode; |
| |
| pc += header_size; |
| |
| (void) memcpy( pc, arrays->array_info_cache, |
| arrays->array_info_cache_size ); |
| pc += arrays->array_info_cache_size; |
| |
| *elements_per_request = count; |
| *total_requests = 0; |
| } |
| |
| |
| return pc; |
| } |
| |
| |
| /** |
| */ |
| void |
| emit_DrawArrays_old( GLenum mode, GLint first, GLsizei count ) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| GLubyte * pc; |
| size_t elements_per_request; |
| unsigned total_requests = 0; |
| unsigned i; |
| size_t total_sent = 0; |
| |
| |
| pc = emit_DrawArrays_header_old( gc, arrays, & elements_per_request, |
| & total_requests, mode, count); |
| |
| |
| /* Write the arrays. |
| */ |
| |
| if ( total_requests == 0 ) { |
| assert( elements_per_request >= count ); |
| |
| for ( i = 0 ; i < count ; i++ ) { |
| pc = emit_element_old( pc, arrays, i + first ); |
| } |
| |
| assert( pc <= gc->bufEnd ); |
| |
| gc->pc = pc; |
| if ( gc->pc > gc->limit ) { |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| } |
| else { |
| unsigned req; |
| |
| |
| for ( req = 2 ; req <= total_requests ; req++ ) { |
| if ( count < elements_per_request ) { |
| elements_per_request = count; |
| } |
| |
| pc = gc->pc; |
| for ( i = 0 ; i < elements_per_request ; i++ ) { |
| pc = emit_element_old( pc, arrays, i + first ); |
| } |
| |
| first += elements_per_request; |
| |
| total_sent += (size_t) (pc - gc->pc); |
| __glXSendLargeChunk( gc, req, total_requests, gc->pc, |
| pc - gc->pc ); |
| |
| count -= elements_per_request; |
| } |
| } |
| } |
| |
| |
| void |
| emit_DrawElements_none( GLenum mode, GLsizei count, GLenum type, |
| const GLvoid *indices ) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| static const uint16_t begin_cmd[2] = { 8, X_GLrop_Begin }; |
| static const uint16_t end_cmd[2] = { 4, X_GLrop_End }; |
| |
| GLubyte * pc; |
| size_t single_vertex_size; |
| unsigned i; |
| |
| |
| single_vertex_size = calculate_single_vertex_size_none( arrays ); |
| |
| |
| if ( (gc->pc + single_vertex_size) >= gc->bufEnd ) { |
| gc->pc = __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| |
| pc = gc->pc; |
| |
| (void) memcpy( pc, begin_cmd, 4 ); |
| *(int *)(pc + 4) = mode; |
| |
| pc += 8; |
| |
| for ( i = 0 ; i < count ; i++ ) { |
| unsigned index = 0; |
| |
| if ( (pc + single_vertex_size) >= gc->bufEnd ) { |
| pc = __glXFlushRenderBuffer(gc, pc); |
| } |
| |
| switch( type ) { |
| case GL_UNSIGNED_INT: |
| index = (unsigned) (((GLuint *) indices)[i]); |
| break; |
| case GL_UNSIGNED_SHORT: |
| index = (unsigned) (((GLushort *) indices)[i]); |
| break; |
| case GL_UNSIGNED_BYTE: |
| index = (unsigned) (((GLubyte *) indices)[i]); |
| break; |
| } |
| pc = emit_element_none( pc, arrays, index ); |
| } |
| |
| if ( (pc + 4) >= gc->bufEnd ) { |
| pc = __glXFlushRenderBuffer(gc, pc); |
| } |
| |
| (void) memcpy( pc, end_cmd, 4 ); |
| pc += 4; |
| |
| gc->pc = pc; |
| if ( gc->pc > gc->limit ) { |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| } |
| |
| |
| /** |
| */ |
| void |
| emit_DrawElements_old( GLenum mode, GLsizei count, GLenum type, |
| const GLvoid *indices ) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| GLubyte * pc; |
| size_t elements_per_request; |
| unsigned total_requests = 0; |
| unsigned i; |
| unsigned req; |
| unsigned req_element=0; |
| |
| |
| pc = emit_DrawArrays_header_old( gc, arrays, & elements_per_request, |
| & total_requests, mode, count); |
| |
| |
| /* Write the arrays. |
| */ |
| |
| req = 2; |
| while ( count > 0 ) { |
| if ( count < elements_per_request ) { |
| elements_per_request = count; |
| } |
| |
| switch( type ) { |
| case GL_UNSIGNED_INT: { |
| const GLuint * ui_ptr = (const GLuint *) indices + req_element; |
| |
| for ( i = 0 ; i < elements_per_request ; i++ ) { |
| const GLint index = (GLint) *(ui_ptr++); |
| pc = emit_element_old( pc, arrays, index ); |
| } |
| break; |
| } |
| case GL_UNSIGNED_SHORT: { |
| const GLushort * us_ptr = (const GLushort *) indices + req_element; |
| |
| for ( i = 0 ; i < elements_per_request ; i++ ) { |
| const GLint index = (GLint) *(us_ptr++); |
| pc = emit_element_old( pc, arrays, index ); |
| } |
| break; |
| } |
| case GL_UNSIGNED_BYTE: { |
| const GLubyte * ub_ptr = (const GLubyte *) indices + req_element; |
| |
| for ( i = 0 ; i < elements_per_request ; i++ ) { |
| const GLint index = (GLint) *(ub_ptr++); |
| pc = emit_element_old( pc, arrays, index ); |
| } |
| break; |
| } |
| } |
| |
| if ( total_requests != 0 ) { |
| __glXSendLargeChunk( gc, req, total_requests, gc->pc, |
| pc - gc->pc ); |
| pc = gc->pc; |
| req++; |
| } |
| |
| count -= elements_per_request; |
| req_element += elements_per_request; |
| } |
| |
| |
| assert( (total_requests == 0) || ((req - 1) == total_requests) ); |
| |
| if ( total_requests == 0 ) { |
| assert( pc <= gc->bufEnd ); |
| |
| gc->pc = pc; |
| if ( gc->pc > gc->limit ) { |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| } |
| } |
| |
| |
| /** |
| * Validate that the \c mode parameter to \c glDrawArrays, et. al. is valid. |
| * If it is not valid, then an error code is set in the GLX context. |
| * |
| * \returns |
| * \c GL_TRUE if the argument is valid, \c GL_FALSE if is not. |
| */ |
| static GLboolean |
| validate_mode(__GLXcontext *gc, GLenum mode) |
| { |
| switch(mode) { |
| case GL_POINTS: |
| case GL_LINE_STRIP: |
| case GL_LINE_LOOP: |
| case GL_LINES: |
| case GL_TRIANGLE_STRIP: |
| case GL_TRIANGLE_FAN: |
| case GL_TRIANGLES: |
| case GL_QUAD_STRIP: |
| case GL_QUADS: |
| case GL_POLYGON: |
| break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return GL_FALSE; |
| } |
| |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * Validate that the \c count parameter to \c glDrawArrays, et. al. is valid. |
| * A value less than zero is invalid and will result in \c GL_INVALID_VALUE |
| * being set. A value of zero will not result in an error being set, but |
| * will result in \c GL_FALSE being returned. |
| * |
| * \returns |
| * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not. |
| */ |
| static GLboolean |
| validate_count(__GLXcontext *gc, GLsizei count) |
| { |
| if (count < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| } |
| |
| return (count > 0); |
| } |
| |
| |
| /** |
| * Validate that the \c type parameter to \c glDrawElements, et. al. is |
| * valid. Only \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT, and |
| * \c GL_UNSIGNED_INT are valid. |
| * |
| * \returns |
| * \c GL_TRUE if the argument is valid, \c GL_FALSE if it is not. |
| */ |
| static GLboolean validate_type(__GLXcontext *gc, GLenum type) |
| { |
| switch( type ) { |
| case GL_UNSIGNED_INT: |
| case GL_UNSIGNED_SHORT: |
| case GL_UNSIGNED_BYTE: |
| return GL_TRUE; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glDrawArrays(GLenum mode, GLint first, GLsizei count) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| |
| if ( validate_mode(gc, mode) && validate_count(gc, count) ) { |
| if ( ! arrays->array_info_cache_valid ) { |
| fill_array_info_cache( arrays ); |
| } |
| |
| arrays->DrawArrays(mode, first, count); |
| } |
| } |
| |
| |
| void __indirect_glArrayElement(GLint index) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| size_t single_vertex_size; |
| |
| |
| single_vertex_size = calculate_single_vertex_size_none( arrays ); |
| |
| if ( (gc->pc + single_vertex_size) >= gc->bufEnd ) { |
| gc->pc = __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| |
| gc->pc = emit_element_none( gc->pc, arrays, index ); |
| |
| if ( gc->pc > gc->limit ) { |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| } |
| } |
| |
| |
| void __indirect_glDrawElements(GLenum mode, GLsizei count, GLenum type, |
| const GLvoid *indices) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| |
| if ( validate_mode(gc, mode) && validate_count(gc, count) |
| && validate_type(gc, type) ) { |
| if ( ! arrays->array_info_cache_valid ) { |
| fill_array_info_cache( arrays ); |
| } |
| |
| arrays->DrawElements(mode, count, type, indices); |
| } |
| } |
| |
| |
| void __indirect_glDrawRangeElements(GLenum mode, GLuint start, GLuint end, |
| GLsizei count, GLenum type, |
| const GLvoid *indices) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| |
| |
| if ( validate_mode(gc, mode) && validate_count(gc, count) |
| && validate_type(gc, type) ) { |
| if (end < start) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| if ( ! arrays->array_info_cache_valid ) { |
| fill_array_info_cache( arrays ); |
| } |
| |
| arrays->DrawElements(mode, count, type, indices); |
| } |
| } |
| |
| |
| void __indirect_glMultiDrawArraysEXT(GLenum mode, GLint *first, GLsizei *count, |
| GLsizei primcount) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| GLsizei i; |
| |
| |
| if ( validate_mode(gc, mode) ) { |
| if ( ! arrays->array_info_cache_valid ) { |
| fill_array_info_cache( arrays ); |
| } |
| |
| for ( i = 0 ; i < primcount ; i++ ) { |
| if ( validate_count( gc, count[i] ) ) { |
| arrays->DrawArrays(mode, first[i], count[i]); |
| } |
| } |
| } |
| } |
| |
| |
| void __indirect_glMultiDrawElementsEXT(GLenum mode, const GLsizei *count, |
| GLenum type, const GLvoid ** indices, |
| GLsizei primcount) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| const __GLXattribute * state = |
| (const __GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| GLsizei i; |
| |
| |
| if ( validate_mode(gc, mode) && validate_type(gc, type) ) { |
| if ( ! arrays->array_info_cache_valid ) { |
| fill_array_info_cache( arrays ); |
| } |
| |
| for ( i = 0 ; i < primcount ; i++ ) { |
| if ( validate_count( gc, count[i] ) ) { |
| arrays->DrawElements(mode, count[i], type, indices[i]); |
| } |
| } |
| } |
| } |
| |
| |
| #define COMMON_ARRAY_DATA_INIT(a, PTR, TYPE, STRIDE, COUNT, NORMALIZED, HDR_SIZE, OPCODE) \ |
| do { \ |
| (a)->data = PTR; \ |
| (a)->data_type = TYPE; \ |
| (a)->user_stride = STRIDE; \ |
| (a)->count = COUNT; \ |
| (a)->normalized = NORMALIZED; \ |
| \ |
| (a)->element_size = __glXTypeSize( TYPE ) * COUNT; \ |
| (a)->true_stride = (STRIDE == 0) \ |
| ? (a)->element_size : STRIDE; \ |
| \ |
| (a)->header_size = HDR_SIZE; \ |
| ((uint16_t *) (a)->header)[0] = __GLX_PAD((a)->header_size + (a)->element_size); \ |
| ((uint16_t *) (a)->header)[1] = OPCODE; \ |
| } while(0) |
| |
| |
| void __indirect_glVertexPointer( GLint size, GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| static const uint16_t short_ops[5] = { |
| 0, 0, X_GLrop_Vertex2sv, X_GLrop_Vertex3sv, X_GLrop_Vertex4sv |
| }; |
| static const uint16_t int_ops[5] = { |
| 0, 0, X_GLrop_Vertex2iv, X_GLrop_Vertex3iv, X_GLrop_Vertex4iv |
| }; |
| static const uint16_t float_ops[5] = { |
| 0, 0, X_GLrop_Vertex2fv, X_GLrop_Vertex3fv, X_GLrop_Vertex4fv |
| }; |
| static const uint16_t double_ops[5] = { |
| 0, 0, X_GLrop_Vertex2dv, X_GLrop_Vertex3dv, X_GLrop_Vertex4dv |
| }; |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (size < 2 || size > 4 || stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| switch ( type ) { |
| case GL_SHORT: opcode = short_ops[size]; break; |
| case GL_INT: opcode = int_ops[size]; break; |
| case GL_FLOAT: opcode = float_ops[size]; break; |
| case GL_DOUBLE: opcode = double_ops[size]; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| a = get_array_entry( arrays, GL_VERTEX_ARRAY, 0 ); |
| assert( a != NULL ); |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, size, GL_FALSE, 4, |
| opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glNormalPointer( GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| switch ( type ) { |
| case GL_BYTE: opcode = X_GLrop_Normal3bv; break; |
| case GL_SHORT: opcode = X_GLrop_Normal3sv; break; |
| case GL_INT: opcode = X_GLrop_Normal3iv; break; |
| case GL_FLOAT: opcode = X_GLrop_Normal3fv; break; |
| case GL_DOUBLE: opcode = X_GLrop_Normal3dv; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| a = get_array_entry( arrays, GL_NORMAL_ARRAY, 0 ); |
| assert( a != NULL ); |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, 3, GL_TRUE, 4, |
| opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glColorPointer( GLint size, GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| static const uint16_t byte_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3bv, X_GLrop_Color4bv |
| }; |
| static const uint16_t ubyte_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3ubv, X_GLrop_Color4ubv |
| }; |
| static const uint16_t short_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3sv, X_GLrop_Color4sv |
| }; |
| static const uint16_t ushort_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3usv, X_GLrop_Color4usv |
| }; |
| static const uint16_t int_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3iv, X_GLrop_Color4iv |
| }; |
| static const uint16_t uint_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3uiv, X_GLrop_Color4uiv |
| }; |
| static const uint16_t float_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3fv, X_GLrop_Color4fv |
| }; |
| static const uint16_t double_ops[5] = { |
| 0, 0, 0, X_GLrop_Color3dv, X_GLrop_Color4dv |
| }; |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (size < 3 || size > 4 || stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| switch ( type ) { |
| case GL_BYTE: opcode = byte_ops[size]; break; |
| case GL_UNSIGNED_BYTE: opcode = ubyte_ops[size]; break; |
| case GL_SHORT: opcode = short_ops[size]; break; |
| case GL_UNSIGNED_SHORT: opcode = ushort_ops[size]; break; |
| case GL_INT: opcode = int_ops[size]; break; |
| case GL_UNSIGNED_INT: opcode = uint_ops[size]; break; |
| case GL_FLOAT: opcode = float_ops[size]; break; |
| case GL_DOUBLE: opcode = double_ops[size]; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| a = get_array_entry( arrays, GL_COLOR_ARRAY, 0 ); |
| assert( a != NULL ); |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, size, GL_TRUE, 4, |
| opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glIndexPointer( GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| switch ( type ) { |
| case GL_UNSIGNED_BYTE: opcode = X_GLrop_Indexubv; break; |
| case GL_SHORT: opcode = X_GLrop_Indexsv; break; |
| case GL_INT: opcode = X_GLrop_Indexiv; break; |
| case GL_FLOAT: opcode = X_GLrop_Indexfv; break; |
| case GL_DOUBLE: opcode = X_GLrop_Indexdv; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| a = get_array_entry( arrays, GL_INDEX_ARRAY, 0 ); |
| assert( a != NULL ); |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, 1, GL_FALSE, 4, |
| opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glEdgeFlagPointer( GLsizei stride, const GLvoid * pointer ) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| |
| a = get_array_entry( arrays, GL_EDGE_FLAG_ARRAY, 0 ); |
| assert( a != NULL ); |
| COMMON_ARRAY_DATA_INIT( a, pointer, GL_UNSIGNED_BYTE, stride, 1, GL_FALSE, |
| 4, X_GLrop_EdgeFlagv ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glTexCoordPointer( GLint size, GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| static const uint16_t short_ops[5] = { |
| 0, X_GLrop_TexCoord1sv, X_GLrop_TexCoord2sv, X_GLrop_TexCoord3sv, X_GLrop_TexCoord4sv |
| }; |
| static const uint16_t int_ops[5] = { |
| 0, X_GLrop_TexCoord1iv, X_GLrop_TexCoord2iv, X_GLrop_TexCoord3iv, X_GLrop_TexCoord4iv |
| }; |
| static const uint16_t float_ops[5] = { |
| 0, X_GLrop_TexCoord1dv, X_GLrop_TexCoord2fv, X_GLrop_TexCoord3fv, X_GLrop_TexCoord4fv |
| }; |
| static const uint16_t double_ops[5] = { |
| 0, X_GLrop_TexCoord1dv, X_GLrop_TexCoord2dv, X_GLrop_TexCoord3dv, X_GLrop_TexCoord4dv |
| }; |
| |
| static const uint16_t mshort_ops[5] = { |
| 0, X_GLrop_MultiTexCoord1svARB, X_GLrop_MultiTexCoord2svARB, X_GLrop_MultiTexCoord3svARB, X_GLrop_MultiTexCoord4svARB |
| }; |
| static const uint16_t mint_ops[5] = { |
| 0, X_GLrop_MultiTexCoord1ivARB, X_GLrop_MultiTexCoord2ivARB, X_GLrop_MultiTexCoord3ivARB, X_GLrop_MultiTexCoord4ivARB |
| }; |
| static const uint16_t mfloat_ops[5] = { |
| 0, X_GLrop_MultiTexCoord1dvARB, X_GLrop_MultiTexCoord2fvARB, X_GLrop_MultiTexCoord3fvARB, X_GLrop_MultiTexCoord4fvARB |
| }; |
| static const uint16_t mdouble_ops[5] = { |
| 0, X_GLrop_MultiTexCoord1dvARB, X_GLrop_MultiTexCoord2dvARB, X_GLrop_MultiTexCoord3dvARB, X_GLrop_MultiTexCoord4dvARB |
| }; |
| |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| unsigned header_size; |
| unsigned index; |
| |
| |
| if (size < 1 || size > 4 || stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| index = arrays->active_texture_unit; |
| if ( index == 0 ) { |
| switch ( type ) { |
| case GL_SHORT: opcode = short_ops[size]; break; |
| case GL_INT: opcode = int_ops[size]; break; |
| case GL_FLOAT: opcode = float_ops[size]; break; |
| case GL_DOUBLE: opcode = double_ops[size]; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| header_size = 4; |
| } |
| else { |
| switch ( type ) { |
| case GL_SHORT: opcode = mshort_ops[size]; break; |
| case GL_INT: opcode = mint_ops[size]; break; |
| case GL_FLOAT: opcode = mfloat_ops[size]; break; |
| case GL_DOUBLE: opcode = mdouble_ops[size]; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| header_size = 8; |
| } |
| |
| a = get_array_entry( arrays, GL_TEXTURE_COORD_ARRAY, index ); |
| assert( a != NULL ); |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, size, GL_FALSE, |
| header_size, opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glSecondaryColorPointerEXT( GLint size, GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (size != 3 || stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| switch ( type ) { |
| case GL_BYTE: opcode = 4126; break; |
| case GL_UNSIGNED_BYTE: opcode = 4131; break; |
| case GL_SHORT: opcode = 4127; break; |
| case GL_UNSIGNED_SHORT: opcode = 4132; break; |
| case GL_INT: opcode = 4128; break; |
| case GL_UNSIGNED_INT: opcode = 4133; break; |
| case GL_FLOAT: opcode = 4129; break; |
| case GL_DOUBLE: opcode = 4130; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| a = get_array_entry( arrays, GL_SECONDARY_COLOR_ARRAY, 0 ); |
| if ( a == NULL ) { |
| __glXSetError(gc, GL_INVALID_OPERATION); |
| return; |
| } |
| |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, size, GL_TRUE, 4, |
| opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glFogCoordPointerEXT( GLenum type, GLsizei stride, |
| const GLvoid * pointer ) |
| { |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| if (stride < 0) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| switch ( type ) { |
| case GL_FLOAT: opcode = 4124; break; |
| case GL_DOUBLE: opcode = 4125; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| a = get_array_entry( arrays, GL_FOG_COORD_ARRAY, 0 ); |
| if ( a == NULL ) { |
| __glXSetError(gc, GL_INVALID_OPERATION); |
| return; |
| } |
| |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, 1, GL_FALSE, 4, |
| opcode ); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| void __indirect_glVertexAttribPointerARB(GLuint index, GLint size, |
| GLenum type, GLboolean normalized, |
| GLsizei stride, |
| const GLvoid * pointer) |
| { |
| static const uint16_t short_ops[5] = { 0, 4189, 4190, 4191, 4192 }; |
| static const uint16_t float_ops[5] = { 0, 4193, 4194, 4195, 4196 }; |
| static const uint16_t double_ops[5] = { 0, 4197, 4198, 4199, 4200 }; |
| |
| uint16_t opcode; |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| __GLXattribute * state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| unsigned true_immediate_count; |
| unsigned true_immediate_size; |
| |
| |
| if ( (size < 1) || (size > 4) || (stride < 0) |
| || (index > arrays->num_vertex_program_attribs) ){ |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| |
| if ( normalized && (type != GL_FLOAT) && (type != GL_DOUBLE)) { |
| switch( type ) { |
| case GL_BYTE: opcode = X_GLrop_VertexAttrib4NbvARB; break; |
| case GL_UNSIGNED_BYTE: opcode = X_GLrop_VertexAttrib4NubvARB; break; |
| case GL_SHORT: opcode = X_GLrop_VertexAttrib4NsvARB; break; |
| case GL_UNSIGNED_SHORT: opcode = X_GLrop_VertexAttrib4NusvARB; break; |
| case GL_INT: opcode = X_GLrop_VertexAttrib4NivARB; break; |
| case GL_UNSIGNED_INT: opcode = X_GLrop_VertexAttrib4NuivARB; break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| true_immediate_count = 4; |
| } |
| else { |
| true_immediate_count = size; |
| |
| switch( type ) { |
| case GL_BYTE: |
| opcode = X_GLrop_VertexAttrib4bvARB; |
| true_immediate_count = 4; |
| break; |
| case GL_UNSIGNED_BYTE: |
| opcode = X_GLrop_VertexAttrib4ubvARB; |
| true_immediate_count = 4; |
| break; |
| case GL_SHORT: |
| opcode = short_ops[size]; |
| break; |
| case GL_UNSIGNED_SHORT: |
| opcode = X_GLrop_VertexAttrib4usvARB; |
| true_immediate_count = 4; |
| break; |
| case GL_INT: |
| opcode = X_GLrop_VertexAttrib4ivARB; |
| true_immediate_count = 4; |
| break; |
| case GL_UNSIGNED_INT: |
| opcode = X_GLrop_VertexAttrib4uivARB; |
| true_immediate_count = 4; |
| break; |
| case GL_FLOAT: |
| opcode = float_ops[size]; |
| break; |
| case GL_DOUBLE: |
| opcode = double_ops[size]; |
| break; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| } |
| |
| a = get_array_entry( arrays, GL_VERTEX_ATTRIB_ARRAY_POINTER, index ); |
| if ( a == NULL ) { |
| __glXSetError(gc, GL_INVALID_OPERATION); |
| return; |
| } |
| |
| COMMON_ARRAY_DATA_INIT( a, pointer, type, stride, size, normalized, 8, |
| opcode ); |
| |
| true_immediate_size = __glXTypeSize(type) * true_immediate_count; |
| ((uint16_t *) (a)->header)[0] = __GLX_PAD(a->header_size |
| + true_immediate_size); |
| |
| if ( a->enabled ) { |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * I don't have 100% confidence that this is correct. The different rules |
| * about whether or not generic vertex attributes alias "classic" vertex |
| * attributes (i.e., attrib1 ?= primary color) between ARB_vertex_program, |
| * ARB_vertex_shader, and NV_vertex_program are a bit confusing. My |
| * feeling is that the client-side doesn't have to worry about it. The |
| * client just sends all the data to the server and lets the server deal |
| * with it. |
| */ |
| void __indirect_glVertexAttribPointerNV( GLuint index, GLint size, |
| GLenum type, GLsizei stride, |
| const GLvoid * pointer) |
| { |
| __GLXcontext *gc = __glXGetCurrentContext(); |
| GLboolean normalized = GL_FALSE; |
| |
| |
| switch( type ) { |
| case GL_UNSIGNED_BYTE: |
| if ( size != 4 ) { |
| __glXSetError(gc, GL_INVALID_VALUE); |
| return; |
| } |
| normalized = GL_TRUE; |
| |
| case GL_SHORT: |
| case GL_FLOAT: |
| case GL_DOUBLE: |
| __indirect_glVertexAttribPointerARB(index, size, type, |
| normalized, |
| stride, pointer); |
| return; |
| default: |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| } |
| |
| |
| void __indirect_glClientActiveTextureARB(GLenum texture) |
| { |
| __GLXcontext * const gc = __glXGetCurrentContext(); |
| __GLXattribute * const state = (__GLXattribute *)(gc->client_state_private); |
| struct array_state_vector * const arrays = state->array_state; |
| const GLint unit = (GLint) texture - GL_TEXTURE0; |
| |
| |
| if ( (unit < 0) || (unit >= arrays->num_texture_units) ) { |
| __glXSetError(gc, GL_INVALID_ENUM); |
| return; |
| } |
| |
| arrays->active_texture_unit = unit; |
| } |
| |
| |
| /** |
| * Modify the enable state for the selected array |
| */ |
| GLboolean |
| __glXSetArrayEnable(__GLXattribute *state, GLenum key, unsigned index, |
| GLboolean enable) |
| { |
| struct array_state_vector * arrays = state->array_state; |
| struct array_state * a; |
| |
| |
| /* Texture coordinate arrays have an implict index set when the |
| * application calls glClientActiveTexture. |
| */ |
| if (key == GL_TEXTURE_COORD_ARRAY) { |
| index = arrays->active_texture_unit; |
| } |
| |
| a = get_array_entry( arrays, key, index ); |
| |
| if ( (a != NULL) && (a->enabled != enable) ) { |
| a->enabled = enable; |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| void |
| __glXArrayDisableAll( __GLXattribute * state ) |
| { |
| struct array_state_vector * arrays = state->array_state; |
| unsigned i; |
| |
| |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| arrays->arrays[i].enabled = GL_FALSE; |
| } |
| |
| arrays->array_info_cache_valid = GL_FALSE; |
| } |
| |
| |
| /** |
| */ |
| GLboolean |
| __glXGetArrayEnable( const __GLXattribute * const state, |
| GLenum key, unsigned index, GLintptr * dest ) |
| { |
| const struct array_state_vector * arrays = state->array_state; |
| const struct array_state * a = get_array_entry( (struct array_state_vector *) arrays, |
| key, index ); |
| |
| if ( a != NULL ) { |
| *dest = (GLintptr) a->enabled; |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| /** |
| */ |
| GLboolean |
| __glXGetArrayType( const __GLXattribute * const state, |
| GLenum key, unsigned index, GLintptr * dest ) |
| { |
| const struct array_state_vector * arrays = state->array_state; |
| const struct array_state * a = get_array_entry( (struct array_state_vector *) arrays, |
| key, index ); |
| |
| if ( a != NULL ) { |
| *dest = (GLintptr) a->data_type; |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| /** |
| */ |
| GLboolean |
| __glXGetArraySize( const __GLXattribute * const state, |
| GLenum key, unsigned index, GLintptr * dest ) |
| { |
| const struct array_state_vector * arrays = state->array_state; |
| const struct array_state * a = get_array_entry( (struct array_state_vector *) arrays, |
| key, index ); |
| |
| if ( a != NULL ) { |
| *dest = (GLintptr) a->count; |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| /** |
| */ |
| GLboolean |
| __glXGetArrayStride( const __GLXattribute * const state, |
| GLenum key, unsigned index, GLintptr * dest ) |
| { |
| const struct array_state_vector * arrays = state->array_state; |
| const struct array_state * a = get_array_entry( (struct array_state_vector *) arrays, |
| key, index ); |
| |
| if ( a != NULL ) { |
| *dest = (GLintptr) a->user_stride; |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| /** |
| */ |
| GLboolean |
| __glXGetArrayPointer( const __GLXattribute * const state, |
| GLenum key, unsigned index, void ** dest ) |
| { |
| const struct array_state_vector * arrays = state->array_state; |
| const struct array_state * a = get_array_entry( (struct array_state_vector *) arrays, |
| key, index ); |
| |
| |
| if ( a != NULL ) { |
| *dest = (void *) (a->data); |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| /** |
| */ |
| GLboolean |
| __glXGetArrayNormalized( const __GLXattribute * const state, |
| GLenum key, unsigned index, GLintptr * dest ) |
| { |
| const struct array_state_vector * arrays = state->array_state; |
| const struct array_state * a = get_array_entry( (struct array_state_vector *) arrays, |
| key, index ); |
| |
| |
| if ( a != NULL ) { |
| *dest = (GLintptr) a->normalized; |
| } |
| |
| return (a != NULL); |
| } |
| |
| |
| /** |
| */ |
| GLuint |
| __glXGetActiveTextureUnit( const __GLXattribute * const state ) |
| { |
| return state->array_state->active_texture_unit; |
| } |
| |
| |
| void |
| __glXPushArrayState( __GLXattribute * state ) |
| { |
| struct array_state_vector * arrays = state->array_state; |
| struct array_stack_state * stack = & arrays->stack[ (arrays->stack_index * arrays->num_arrays)]; |
| unsigned i; |
| |
| /* XXX are we pushing _all_ the necessary fields? */ |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| stack[i].data = arrays->arrays[i].data; |
| stack[i].data_type = arrays->arrays[i].data_type; |
| stack[i].user_stride = arrays->arrays[i].user_stride; |
| stack[i].count = arrays->arrays[i].count; |
| stack[i].key = arrays->arrays[i].key; |
| stack[i].index = arrays->arrays[i].index; |
| stack[i].enabled = arrays->arrays[i].enabled; |
| } |
| |
| arrays->active_texture_unit_stack[ arrays->stack_index ] = |
| arrays->active_texture_unit; |
| |
| arrays->stack_index++; |
| } |
| |
| |
| void |
| __glXPopArrayState( __GLXattribute * state ) |
| { |
| struct array_state_vector * arrays = state->array_state; |
| struct array_stack_state * stack; |
| unsigned i; |
| |
| |
| arrays->stack_index--; |
| stack = & arrays->stack[ (arrays->stack_index * arrays->num_arrays) ]; |
| |
| for ( i = 0 ; i < arrays->num_arrays ; i++ ) { |
| switch ( stack[i].key ) { |
| case GL_NORMAL_ARRAY: |
| __indirect_glNormalPointer( stack[i].data_type, |
| stack[i].user_stride, |
| stack[i].data ); |
| break; |
| case GL_COLOR_ARRAY: |
| __indirect_glColorPointer( stack[i].count, |
| stack[i].data_type, |
| stack[i].user_stride, |
| stack[i].data ); |
| break; |
| case GL_INDEX_ARRAY: |
| __indirect_glIndexPointer( stack[i].data_type, |
| stack[i].user_stride, |
| stack[i].data ); |
| break; |
| case GL_EDGE_FLAG_ARRAY: |
| __indirect_glEdgeFlagPointer( stack[i].user_stride, |
| stack[i].data ); |
| break; |
| case GL_TEXTURE_COORD_ARRAY: |
| arrays->active_texture_unit = stack[i].index; |
| __indirect_glTexCoordPointer( stack[i].count, |
| stack[i].data_type, |
| stack[i].user_stride, |
| stack[i].data ); |
| break; |
| case GL_SECONDARY_COLOR_ARRAY: |
| __indirect_glSecondaryColorPointerEXT( stack[i].count, |
| stack[i].data_type, |
| stack[i].user_stride, |
| stack[i].data ); |
| break; |
| case GL_FOG_COORDINATE_ARRAY: |
| __indirect_glFogCoordPointerEXT( stack[i].data_type, |
| stack[i].user_stride, |
| stack[i].data ); |
| break; |
| |
| } |
| |
| __glXSetArrayEnable( state, stack[i].key, stack[i].index, |
| stack[i].enabled ); |
| } |
| |
| arrays->active_texture_unit = |
| arrays->active_texture_unit_stack[ arrays->stack_index ]; |
| } |