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gerrit-public.fairphone.software / fp2-dev / platform / external / mesa3d / e5d351dcfde58777162552cf5cd2a9cd8299f4cd / . / src / mesa / drivers / dri / intel / intel_screen.c
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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS AND/OR ITS 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 "main/glheader.h"
#include "main/context.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"
#include "utils.h"
#include "vblank.h"
#include "xmlpool.h"
#include "intel_batchbuffer.h"
#include "intel_buffers.h"
#include "intel_bufmgr.h"
#include "intel_chipset.h"
#include "intel_extensions.h"
#include "intel_fbo.h"
#include "intel_regions.h"
#include "intel_swapbuffers.h"
#include "intel_screen.h"
#include "intel_span.h"
#include "intel_tex.h"
#include "i915_drm.h"
#include "i830_dri.h"
#define DRI_CONF_TEXTURE_TILING(def) \
DRI_CONF_OPT_BEGIN(texture_tiling, bool, def) \
DRI_CONF_DESC(en, "Enable texture tiling") \
DRI_CONF_OPT_END \
PUBLIC const char __driConfigOptions[] =
DRI_CONF_BEGIN
DRI_CONF_SECTION_PERFORMANCE
DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
/* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
* DRI_CONF_BO_REUSE_ALL
*/
DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
DRI_CONF_ENUM(0, "Disable buffer object reuse")
DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
DRI_CONF_DESC_END
DRI_CONF_OPT_END
#ifdef I915
DRI_CONF_TEXTURE_TILING(false)
#else
DRI_CONF_TEXTURE_TILING(true)
#endif
DRI_CONF_OPT_BEGIN(early_z, bool, false)
DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
DRI_CONF_OPT_END
DRI_CONF_OPT_BEGIN(fragment_shader, bool, false)
DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
DRI_CONF_OPT_END
DRI_CONF_SECTION_END
DRI_CONF_SECTION_QUALITY
DRI_CONF_FORCE_S3TC_ENABLE(false)
DRI_CONF_ALLOW_LARGE_TEXTURES(2)
DRI_CONF_SECTION_END
DRI_CONF_SECTION_DEBUG
DRI_CONF_NO_RAST(false)
DRI_CONF_ALWAYS_FLUSH_BATCH(false)
DRI_CONF_ALWAYS_FLUSH_CACHE(false)
DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
DRI_CONF_OPT_END
DRI_CONF_SECTION_END
DRI_CONF_END;
const GLuint __driNConfigOptions = 12;
#ifdef USE_NEW_INTERFACE
static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
#endif /*USE_NEW_INTERFACE */
/**
* Map all the memory regions described by the screen.
* \return GL_TRUE if success, GL_FALSE if error.
*/
GLboolean
intelMapScreenRegions(__DRIscreenPrivate * sPriv)
{
intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
if (0)
_mesa_printf("TEX 0x%08x ", intelScreen->tex.handle);
if (intelScreen->tex.size != 0) {
if (drmMap(sPriv->fd,
intelScreen->tex.handle,
intelScreen->tex.size,
(drmAddress *) & intelScreen->tex.map) != 0) {
intelUnmapScreenRegions(intelScreen);
return GL_FALSE;
}
}
return GL_TRUE;
}
void
intelUnmapScreenRegions(intelScreenPrivate * intelScreen)
{
if (intelScreen->tex.map) {
drmUnmap(intelScreen->tex.map, intelScreen->tex.size);
intelScreen->tex.map = NULL;
}
}
static void
intelPrintDRIInfo(intelScreenPrivate * intelScreen,
__DRIscreenPrivate * sPriv, I830DRIPtr gDRIPriv)
{
fprintf(stderr, "*** Front size: 0x%x offset: 0x%x pitch: %d\n",
intelScreen->front.size, intelScreen->front.offset,
intelScreen->pitch);
fprintf(stderr, "*** Back size: 0x%x offset: 0x%x pitch: %d\n",
intelScreen->back.size, intelScreen->back.offset,
intelScreen->pitch);
fprintf(stderr, "*** Depth size: 0x%x offset: 0x%x pitch: %d\n",
intelScreen->depth.size, intelScreen->depth.offset,
intelScreen->pitch);
fprintf(stderr, "*** Texture size: 0x%x offset: 0x%x\n",
intelScreen->tex.size, intelScreen->tex.offset);
fprintf(stderr, "*** Memory : 0x%x\n", gDRIPriv->mem);
}
static void
intelPrintSAREA(const drm_i915_sarea_t * sarea)
{
fprintf(stderr, "SAREA: sarea width %d height %d\n", sarea->width,
sarea->height);
fprintf(stderr, "SAREA: pitch: %d\n", sarea->pitch);
fprintf(stderr,
"SAREA: front offset: 0x%08x size: 0x%x handle: 0x%x tiled: %d\n",
sarea->front_offset, sarea->front_size,
(unsigned) sarea->front_handle, sarea->front_tiled);
fprintf(stderr,
"SAREA: back offset: 0x%08x size: 0x%x handle: 0x%x tiled: %d\n",
sarea->back_offset, sarea->back_size,
(unsigned) sarea->back_handle, sarea->back_tiled);
fprintf(stderr, "SAREA: depth offset: 0x%08x size: 0x%x handle: 0x%x tiled: %d\n",
sarea->depth_offset, sarea->depth_size,
(unsigned) sarea->depth_handle, sarea->depth_tiled);
fprintf(stderr, "SAREA: tex offset: 0x%08x size: 0x%x handle: 0x%x\n",
sarea->tex_offset, sarea->tex_size, (unsigned) sarea->tex_handle);
}
/**
* A number of the screen parameters are obtained/computed from
* information in the SAREA. This function updates those parameters.
*/
static void
intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen,
drm_i915_sarea_t * sarea)
{
intelScreen->width = sarea->width;
intelScreen->height = sarea->height;
intelScreen->pitch = sarea->pitch;
intelScreen->front.offset = sarea->front_offset;
intelScreen->front.handle = sarea->front_handle;
intelScreen->front.size = sarea->front_size;
intelScreen->front.tiled = sarea->front_tiled;
intelScreen->back.offset = sarea->back_offset;
intelScreen->back.handle = sarea->back_handle;
intelScreen->back.size = sarea->back_size;
intelScreen->back.tiled = sarea->back_tiled;
intelScreen->depth.offset = sarea->depth_offset;
intelScreen->depth.handle = sarea->depth_handle;
intelScreen->depth.size = sarea->depth_size;
intelScreen->depth.tiled = sarea->depth_tiled;
if (intelScreen->driScrnPriv->ddx_version.minor >= 9) {
intelScreen->front.bo_handle = sarea->front_bo_handle;
intelScreen->back.bo_handle = sarea->back_bo_handle;
intelScreen->depth.bo_handle = sarea->depth_bo_handle;
} else {
intelScreen->front.bo_handle = -1;
intelScreen->back.bo_handle = -1;
intelScreen->depth.bo_handle = -1;
}
intelScreen->tex.offset = sarea->tex_offset;
intelScreen->logTextureGranularity = sarea->log_tex_granularity;
intelScreen->tex.handle = sarea->tex_handle;
intelScreen->tex.size = sarea->tex_size;
if (0)
intelPrintSAREA(sarea);
}
static const __DRItexOffsetExtension intelTexOffsetExtension = {
{ __DRI_TEX_OFFSET },
intelSetTexOffset,
};
static const __DRItexBufferExtension intelTexBufferExtension = {
{ __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
intelSetTexBuffer,
intelSetTexBuffer2,
};
static const __DRIextension *intelScreenExtensions[] = {
&driReadDrawableExtension,
&driCopySubBufferExtension.base,
&driSwapControlExtension.base,
&driFrameTrackingExtension.base,
&driMediaStreamCounterExtension.base,
&intelTexOffsetExtension.base,
&intelTexBufferExtension.base,
NULL
};
static GLboolean
intel_get_param(__DRIscreenPrivate *psp, int param, int *value)
{
int ret;
struct drm_i915_getparam gp;
gp.param = param;
gp.value = value;
ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
if (ret) {
_mesa_warning(NULL, "drm_i915_getparam: %d", ret);
return GL_FALSE;
}
return GL_TRUE;
}
static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv)
{
intelScreenPrivate *intelScreen;
I830DRIPtr gDRIPriv = (I830DRIPtr) sPriv->pDevPriv;
drm_i915_sarea_t *sarea;
if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
fprintf(stderr,
"\nERROR! sizeof(I830DRIRec) does not match passed size from device driver\n");
return GL_FALSE;
}
/* Allocate the private area */
intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate));
if (!intelScreen) {
fprintf(stderr, "\nERROR! Allocating private area failed\n");
return GL_FALSE;
}
/* parse information in __driConfigOptions */
driParseOptionInfo(&intelScreen->optionCache,
__driConfigOptions, __driNConfigOptions);
intelScreen->driScrnPriv = sPriv;
sPriv->private = (void *) intelScreen;
sarea = (drm_i915_sarea_t *)
(((GLubyte *) sPriv->pSAREA) + gDRIPriv->sarea_priv_offset);
intelScreen->sarea = sarea;
intelScreen->deviceID = gDRIPriv->deviceID;
intelUpdateScreenFromSAREA(intelScreen, sarea);
if (!intelMapScreenRegions(sPriv)) {
fprintf(stderr, "\nERROR! mapping regions\n");
_mesa_free(intelScreen);
sPriv->private = NULL;
return GL_FALSE;
}
if (0)
intelPrintDRIInfo(intelScreen, sPriv, gDRIPriv);
intelScreen->drmMinor = sPriv->drm_version.minor;
/* Determine if IRQs are active? */
if (!intel_get_param(sPriv, I915_PARAM_IRQ_ACTIVE,
&intelScreen->irq_active))
return GL_FALSE;
sPriv->extensions = intelScreenExtensions;
return GL_TRUE;
}
static void
intelDestroyScreen(__DRIscreenPrivate * sPriv)
{
intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
dri_bufmgr_destroy(intelScreen->bufmgr);
intelUnmapScreenRegions(intelScreen);
driDestroyOptionInfo(&intelScreen->optionCache);
FREE(intelScreen);
sPriv->private = NULL;
}
/**
* This is called when we need to set up GL rendering to a new X window.
*/
static GLboolean
intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
__DRIdrawablePrivate * driDrawPriv,
const __GLcontextModes * mesaVis, GLboolean isPixmap)
{
if (isPixmap) {
return GL_FALSE; /* not implemented */
}
else {
GLboolean swStencil = (mesaVis->stencilBits > 0 &&
mesaVis->depthBits != 24);
gl_format rgbFormat;
struct intel_framebuffer *intel_fb = CALLOC_STRUCT(intel_framebuffer);
if (!intel_fb)
return GL_FALSE;
_mesa_initialize_framebuffer(&intel_fb->Base, mesaVis);
if (mesaVis->redBits == 5)
rgbFormat = MESA_FORMAT_RGB565;
else if (mesaVis->alphaBits == 0)
rgbFormat = MESA_FORMAT_XRGB8888;
else
rgbFormat = MESA_FORMAT_ARGB8888;
/* setup the hardware-based renderbuffers */
intel_fb->color_rb[0] = intel_create_renderbuffer(rgbFormat);
_mesa_add_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT,
&intel_fb->color_rb[0]->Base);
if (mesaVis->doubleBufferMode) {
intel_fb->color_rb[1] = intel_create_renderbuffer(rgbFormat);
_mesa_add_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT,
&intel_fb->color_rb[1]->Base);
}
if (mesaVis->depthBits == 24) {
if (mesaVis->stencilBits == 8) {
/* combined depth/stencil buffer */
struct intel_renderbuffer *depthStencilRb
= intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
/* note: bind RB to two attachment points */
_mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
&depthStencilRb->Base);
_mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL,
&depthStencilRb->Base);
} else {
struct intel_renderbuffer *depthRb
= intel_create_renderbuffer(MESA_FORMAT_X8_Z24);
_mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
&depthRb->Base);
}
}
else if (mesaVis->depthBits == 16) {
/* just 16-bit depth buffer, no hw stencil */
struct intel_renderbuffer *depthRb
= intel_create_renderbuffer(MESA_FORMAT_Z16);
_mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, &depthRb->Base);
}
/* now add any/all software-based renderbuffers we may need */
_mesa_add_soft_renderbuffers(&intel_fb->Base,
GL_FALSE, /* never sw color */
GL_FALSE, /* never sw depth */
swStencil, mesaVis->accumRedBits > 0,
GL_FALSE, /* never sw alpha */
GL_FALSE /* never sw aux */ );
driDrawPriv->driverPrivate = (void *) intel_fb;
return GL_TRUE;
}
}
static void
intelDestroyBuffer(__DRIdrawablePrivate * driDrawPriv)
{
struct intel_framebuffer *intel_fb = driDrawPriv->driverPrivate;
struct intel_renderbuffer *depth_rb;
struct intel_renderbuffer *stencil_rb;
if (intel_fb) {
if (intel_fb->color_rb[0]) {
intel_renderbuffer_set_region(intel_fb->color_rb[0], NULL);
}
if (intel_fb->color_rb[1]) {
intel_renderbuffer_set_region(intel_fb->color_rb[1], NULL);
}
depth_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
if (depth_rb) {
intel_renderbuffer_set_region(depth_rb, NULL);
}
stencil_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
if (stencil_rb) {
intel_renderbuffer_set_region(stencil_rb, NULL);
}
}
_mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
}
/**
* Get information about previous buffer swaps.
*/
static int
intelGetSwapInfo(__DRIdrawablePrivate * dPriv, __DRIswapInfo * sInfo)
{
struct intel_framebuffer *intel_fb;
if ((dPriv == NULL) || (dPriv->driverPrivate == NULL)
|| (sInfo == NULL)) {
return -1;
}
intel_fb = dPriv->driverPrivate;
sInfo->swap_count = intel_fb->swap_count;
sInfo->swap_ust = intel_fb->swap_ust;
sInfo->swap_missed_count = intel_fb->swap_missed_count;
sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
? driCalculateSwapUsage(dPriv, 0, intel_fb->swap_missed_ust)
: 0.0;
return 0;
}
/* There are probably better ways to do this, such as an
* init-designated function to register chipids and createcontext
* functions.
*/
extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,
__DRIcontextPrivate * driContextPriv,
void *sharedContextPrivate);
extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
__DRIcontextPrivate * driContextPriv,
void *sharedContextPrivate);
extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis,
__DRIcontextPrivate * driContextPriv,
void *sharedContextPrivate);
static GLboolean
intelCreateContext(const __GLcontextModes * mesaVis,
__DRIcontextPrivate * driContextPriv,
void *sharedContextPrivate)
{
__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
#ifdef I915
if (IS_9XX(intelScreen->deviceID)) {
if (!IS_965(intelScreen->deviceID)) {
return i915CreateContext(mesaVis, driContextPriv,
sharedContextPrivate);
}
} else {
intelScreen->no_vbo = GL_TRUE;
return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
}
#else
if (IS_965(intelScreen->deviceID))
return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate);
#endif
fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);
return GL_FALSE;
}
static __DRIconfig **
intelFillInModes(__DRIscreenPrivate *psp,
unsigned pixel_bits, unsigned depth_bits,
unsigned stencil_bits, GLboolean have_back_buffer)
{
__DRIconfig **configs;
__GLcontextModes *m;
unsigned depth_buffer_factor;
unsigned back_buffer_factor;
int i;
/* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
* support pageflipping at all.
*/
static const GLenum back_buffer_modes[] = {
GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
};
uint8_t depth_bits_array[3];
uint8_t stencil_bits_array[3];
uint8_t msaa_samples_array[1];
depth_bits_array[0] = 0;
depth_bits_array[1] = depth_bits;
depth_bits_array[2] = depth_bits;
/* Just like with the accumulation buffer, always provide some modes
* with a stencil buffer. It will be a sw fallback, but some apps won't
* care about that.
*/
stencil_bits_array[0] = 0;
stencil_bits_array[1] = 0;
if (depth_bits == 24)
stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits;
msaa_samples_array[0] = 0;
depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1;
back_buffer_factor = (have_back_buffer) ? 3 : 1;
if (pixel_bits == 16) {
configs = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
depth_bits_array, stencil_bits_array,
depth_buffer_factor, back_buffer_modes,
back_buffer_factor,
msaa_samples_array, 1);
}
else {
__DRIconfig **configs_a8r8g8b8;
__DRIconfig **configs_x8r8g8b8;
configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
depth_bits_array,
stencil_bits_array,
depth_buffer_factor,
back_buffer_modes,
back_buffer_factor,
msaa_samples_array, 1);
configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
depth_bits_array,
stencil_bits_array,
depth_buffer_factor,
back_buffer_modes,
back_buffer_factor,
msaa_samples_array, 1);
configs = driConcatConfigs(configs_a8r8g8b8, configs_x8r8g8b8);
}
if (configs == NULL) {
fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
__LINE__);
return NULL;
}
/* Mark the visual as slow if there are "fake" stencil bits.
*/
for (i = 0; configs[i]; i++) {
m = &configs[i]->modes;
if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
m->visualRating = GLX_SLOW_CONFIG;
}
}
return configs;
}
static GLboolean
intel_init_bufmgr(intelScreenPrivate *intelScreen)
{
GLboolean gem_disable = getenv("INTEL_NO_GEM") != NULL;
int gem_kernel = 0;
GLboolean gem_supported;
struct drm_i915_getparam gp;
__DRIscreenPrivate *spriv = intelScreen->driScrnPriv;
int num_fences = 0;
intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;
gp.param = I915_PARAM_HAS_GEM;
gp.value = &gem_kernel;
(void) drmCommandWriteRead(spriv->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
/* If we've got a new enough DDX that's initializing GEM and giving us
* object handles for the shared buffers, use that.
*/
intelScreen->ttm = GL_FALSE;
if (intelScreen->driScrnPriv->dri2.enabled)
gem_supported = GL_TRUE;
else if (intelScreen->driScrnPriv->ddx_version.minor >= 9 &&
gem_kernel &&
intelScreen->front.bo_handle != -1)
gem_supported = GL_TRUE;
else
gem_supported = GL_FALSE;
if (!gem_disable && gem_supported) {
intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
if (intelScreen->bufmgr != NULL)
intelScreen->ttm = GL_TRUE;
}
/* Otherwise, use the classic buffer manager. */
if (intelScreen->bufmgr == NULL) {
if (gem_disable) {
_mesa_warning(NULL, "GEM disabled. Using classic.");
} else {
_mesa_warning(NULL,
"Failed to initialize GEM. Falling back to classic.");
}
if (intelScreen->tex.size == 0) {
fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
__func__, __LINE__);
return GL_FALSE;
}
intelScreen->bufmgr =
intel_bufmgr_fake_init(spriv->fd,
intelScreen->tex.offset,
intelScreen->tex.map,
intelScreen->tex.size,
(unsigned int * volatile)
&intelScreen->sarea->last_dispatch);
}
if (intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences))
intelScreen->kernel_exec_fencing = !!num_fences;
else
intelScreen->kernel_exec_fencing = GL_FALSE;
return GL_TRUE;
}
/**
* This is the driver specific part of the createNewScreen entry point.
* Called when using legacy DRI.
*
* \todo maybe fold this into intelInitDriver
*
* \return the __GLcontextModes supported by this driver
*/
static const __DRIconfig **intelInitScreen(__DRIscreenPrivate *psp)
{
intelScreenPrivate *intelScreen;
#ifdef I915
static const __DRIversion ddx_expected = { 1, 5, 0 };
#else
static const __DRIversion ddx_expected = { 1, 6, 0 };
#endif
static const __DRIversion dri_expected = { 4, 0, 0 };
static const __DRIversion drm_expected = { 1, 5, 0 };
I830DRIPtr dri_priv = (I830DRIPtr) psp->pDevPriv;
if (!driCheckDriDdxDrmVersions2("i915",
&psp->dri_version, &dri_expected,
&psp->ddx_version, &ddx_expected,
&psp->drm_version, &drm_expected)) {
return NULL;
}
if (!intelInitDriver(psp))
return NULL;
psp->extensions = intelScreenExtensions;
intelScreen = psp->private;
if (!intel_init_bufmgr(intelScreen))
return GL_FALSE;
return (const __DRIconfig **)
intelFillInModes(psp, dri_priv->cpp * 8,
(dri_priv->cpp == 2) ? 16 : 24,
(dri_priv->cpp == 2) ? 0 : 8, 1);
}
struct intel_context *intelScreenContext(intelScreenPrivate *intelScreen)
{
/*
* This should probably change to have the screen allocate a dummy
* context at screen creation. For now just use the current context.
*/
GET_CURRENT_CONTEXT(ctx);
if (ctx == NULL) {
_mesa_problem(NULL, "No current context in intelScreenContext\n");
return NULL;
}
return intel_context(ctx);
}
/**
* This is the driver specific part of the createNewScreen entry point.
* Called when using DRI2.
*
* \return the __GLcontextModes supported by this driver
*/
static const
__DRIconfig **intelInitScreen2(__DRIscreenPrivate *psp)
{
intelScreenPrivate *intelScreen;
GLenum fb_format[3];
GLenum fb_type[3];
/* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
* support pageflipping at all.
*/
static const GLenum back_buffer_modes[] = {
GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
};
uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
int color;
__DRIconfig **configs = NULL;
/* Allocate the private area */
intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate));
if (!intelScreen) {
fprintf(stderr, "\nERROR! Allocating private area failed\n");
return GL_FALSE;
}
/* parse information in __driConfigOptions */
driParseOptionInfo(&intelScreen->optionCache,
__driConfigOptions, __driNConfigOptions);
intelScreen->driScrnPriv = psp;
psp->private = (void *) intelScreen;
intelScreen->drmMinor = psp->drm_version.minor;
/* Determine chipset ID */
if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
&intelScreen->deviceID))
return GL_FALSE;
if (!intel_init_bufmgr(intelScreen))
return GL_FALSE;
intelScreen->irq_active = 1;
psp->extensions = intelScreenExtensions;
depth_bits[0] = 0;
stencil_bits[0] = 0;
depth_bits[1] = 16;
stencil_bits[1] = 0;
depth_bits[2] = 24;
stencil_bits[2] = 0;
depth_bits[3] = 24;
stencil_bits[3] = 8;
msaa_samples_array[0] = 0;
fb_format[0] = GL_RGB;
fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
fb_format[1] = GL_BGR;
fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
fb_format[2] = GL_BGRA;
fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
depth_bits[0] = 0;
stencil_bits[0] = 0;
for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
__DRIconfig **new_configs;
int depth_factor;
/* With DRI2 right now, GetBuffers always returns a depth/stencil buffer
* with the same cpp as the drawable. So we can't support depth cpp !=
* color cpp currently.
*/
if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
depth_bits[1] = 16;
stencil_bits[1] = 0;
depth_factor = 2;
} else {
depth_bits[1] = 24;
stencil_bits[1] = 0;
depth_bits[2] = 24;
stencil_bits[2] = 8;
depth_factor = 3;
}
new_configs = driCreateConfigs(fb_format[color], fb_type[color],
depth_bits,
stencil_bits,
depth_factor,
back_buffer_modes,
ARRAY_SIZE(back_buffer_modes),
msaa_samples_array,
ARRAY_SIZE(msaa_samples_array));
if (configs == NULL)
configs = new_configs;
else
configs = driConcatConfigs(configs, new_configs);
}
if (configs == NULL) {
fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
__LINE__);
return NULL;
}
return (const __DRIconfig **)configs;
}
const struct __DriverAPIRec driDriverAPI = {
.InitScreen = intelInitScreen,
.DestroyScreen = intelDestroyScreen,
.CreateContext = intelCreateContext,
.DestroyContext = intelDestroyContext,
.CreateBuffer = intelCreateBuffer,
.DestroyBuffer = intelDestroyBuffer,
.SwapBuffers = intelSwapBuffers,
.MakeCurrent = intelMakeCurrent,
.UnbindContext = intelUnbindContext,
.GetSwapInfo = intelGetSwapInfo,
.GetDrawableMSC = driDrawableGetMSC32,
.WaitForMSC = driWaitForMSC32,
.CopySubBuffer = intelCopySubBuffer,
.InitScreen2 = intelInitScreen2,
};