intel: move shader building/tearing to pipeline_shader.c
diff --git a/icd/intel/pipeline_rmap.c b/icd/intel/pipeline_rmap.c
index dc4dbba..f6c1698 100644
--- a/icd/intel/pipeline_rmap.c
+++ b/icd/intel/pipeline_rmap.c
@@ -25,6 +25,7 @@
  *   Chia-I Wu <olv@lunarg.com>
  */
 
+#include "shader.h"
 #include "pipeline_priv.h"
 
 static struct intel_rmap_slot *rmap_get_slot(struct intel_rmap *rmap,
@@ -254,3 +255,152 @@
     icd_free(rmap->slots);
     icd_free(rmap);
 }
+
+static void intel_pipe_shader_init(struct intel_shader *sh,
+                                   struct intel_pipe_shader *pipe_sh)
+{
+    pipe_sh->in_count = sh->in_count;
+    pipe_sh->out_count = sh->out_count;
+    pipe_sh->sampler_count = sh->sampler_count;
+    pipe_sh->surface_count = sh->surface_count;
+    pipe_sh->barycentric_interps = sh->barycentric_interps;
+    pipe_sh->urb_read_length = sh->urb_read_length;
+    pipe_sh->urb_grf_start = sh->urb_grf_start;
+    pipe_sh->uses = sh->uses;
+}
+
+static XGL_RESULT pipeline_shader(struct intel_pipeline *pipeline,
+                                  const XGL_PIPELINE_SHADER *info)
+{
+    struct intel_shader *sh = intel_shader(info->shader);
+    void *kernel;
+
+    // TODO: process shader object and include in pipeline
+    // For now that processing is simply a copy so that the app
+    // can destroy the original shader object after pipeline creation.
+    kernel = icd_alloc(sh->ir->size, 0, XGL_SYSTEM_ALLOC_INTERNAL_SHADER);
+    if (!kernel)
+        return XGL_ERROR_OUT_OF_MEMORY;
+
+    // TODO: This should be a compile step
+    memcpy(kernel, sh->ir->kernel, sh->ir->size);
+
+    switch (info->stage) {
+    case XGL_SHADER_STAGE_VERTEX:
+        /*
+         * TODO: What should we do here?
+         * shader_state (XGL_PIPELINE_SHADER) contains links
+         * to application memory in the pLinkConstBufferInfo and
+         * it's pBufferData pointers. Do we need to bring all that
+         * into the driver or is it okay to rely on those references
+         * holding good data. In OpenGL we'd make a driver copy. Not
+         * as clear for XGL.
+         * For now, use the app pointers.
+         */
+        pipeline->vs = *info;
+
+       /*
+        * Grab what we need from the intel_shader object as that
+        * could go away after the pipeline is created.
+        */
+        intel_pipe_shader_init(sh, &pipeline->intel_vs);
+        pipeline->intel_vs.pCode = kernel;
+        pipeline->intel_vs.codeSize = sh->ir->size;
+        pipeline->active_shaders |= SHADER_VERTEX_FLAG;
+        pipeline->vs_rmap = intel_rmap_create(pipeline->dev,
+                &info->descriptorSetMapping[0],
+                &info->dynamicMemoryViewMapping, 0);
+        if (!pipeline->vs_rmap) {
+            icd_free(kernel);
+            return XGL_ERROR_OUT_OF_MEMORY;
+        }
+        break;
+    case XGL_SHADER_STAGE_GEOMETRY:
+        intel_pipe_shader_init(sh, &pipeline->gs);
+        pipeline->gs.pCode = kernel;
+        pipeline->gs.codeSize = sh->ir->size;
+        pipeline->active_shaders |= SHADER_GEOMETRY_FLAG;
+        break;
+    case XGL_SHADER_STAGE_FRAGMENT:
+        pipeline->fs = *info;
+        intel_pipe_shader_init(sh, &pipeline->intel_fs);
+        pipeline->intel_fs.pCode = kernel;
+        pipeline->intel_fs.codeSize = sh->ir->size;
+        pipeline->active_shaders |= SHADER_FRAGMENT_FLAG;
+        /* assuming one RT; need to parse the shader */
+        pipeline->fs_rmap = intel_rmap_create(pipeline->dev,
+                &info->descriptorSetMapping[0],
+                &info->dynamicMemoryViewMapping, 1);
+        if (!pipeline->fs_rmap) {
+            icd_free(kernel);
+            return XGL_ERROR_OUT_OF_MEMORY;
+        }
+        break;
+    case XGL_SHADER_STAGE_TESS_CONTROL:
+        intel_pipe_shader_init(sh, &pipeline->tess_control);
+        pipeline->tess_control.pCode = kernel;
+        pipeline->tess_control.codeSize = sh->ir->size;
+        pipeline->active_shaders |= SHADER_TESS_CONTROL_FLAG;
+        break;
+    case XGL_SHADER_STAGE_TESS_EVALUATION:
+        intel_pipe_shader_init(sh, &pipeline->tess_eval);
+        pipeline->tess_eval.pCode = kernel;
+        pipeline->tess_eval.codeSize = sh->ir->size;
+        pipeline->active_shaders |= SHADER_TESS_EVAL_FLAG;
+        break;
+    case XGL_SHADER_STAGE_COMPUTE:
+        intel_pipe_shader_init(sh, &pipeline->compute);
+        pipeline->compute.pCode = kernel;
+        pipeline->compute.codeSize = sh->ir->size;
+        pipeline->active_shaders |= SHADER_COMPUTE_FLAG;
+        break;
+    default:
+        assert(!"unknown shader stage");
+        break;
+    }
+
+    return XGL_SUCCESS;
+}
+
+XGL_RESULT pipeline_build_shaders(struct intel_pipeline *pipeline,
+                                  const struct intel_pipeline_create_info *info)
+{
+    XGL_RESULT ret = XGL_SUCCESS;
+
+    if (ret == XGL_SUCCESS && info->vs.shader)
+        ret = pipeline_shader(pipeline, &info->vs);
+    if (ret == XGL_SUCCESS && info->tcs.shader)
+        ret = pipeline_shader(pipeline, &info->tcs);
+    if (ret == XGL_SUCCESS && info->tes.shader)
+        ret = pipeline_shader(pipeline, &info->tes);
+    if (ret == XGL_SUCCESS && info->gs.shader)
+        ret = pipeline_shader(pipeline, &info->gs);
+    if (ret == XGL_SUCCESS && info->fs.shader)
+        ret = pipeline_shader(pipeline, &info->fs);
+
+    return ret;
+}
+
+void pipeline_tear_shaders(struct intel_pipeline *pipeline)
+{
+    if (pipeline->active_shaders & SHADER_VERTEX_FLAG) {
+        icd_free(pipeline->intel_vs.pCode);
+    }
+    if (pipeline->active_shaders & SHADER_GEOMETRY_FLAG) {
+        icd_free(pipeline->gs.pCode);
+    }
+    if (pipeline->active_shaders & SHADER_FRAGMENT_FLAG) {
+        icd_free(pipeline->intel_fs.pCode);
+    }
+    if (pipeline->active_shaders & SHADER_TESS_CONTROL_FLAG) {
+        icd_free(pipeline->tess_control.pCode);
+    }
+    if (pipeline->active_shaders & SHADER_TESS_EVAL_FLAG) {
+        icd_free(pipeline->tess_eval.pCode);
+    }
+
+    if (pipeline->vs_rmap)
+        intel_rmap_destroy(pipeline->vs_rmap);
+    if (pipeline->fs_rmap)
+        intel_rmap_destroy(pipeline->fs_rmap);
+}