i965: fix VS constant buffer reads
[mesa.git] / src / mesa / drivers / dri / intel / intel_context.c
index 57e574447a6574bbb0662afe6b4de34e06286450..3436b8ecd300d7d324dd2e056008fa6fcf9f6eab 100644 (file)
@@ -28,8 +28,6 @@
 
 #include "main/glheader.h"
 #include "main/context.h"
-#include "main/matrix.h"
-#include "main/simple_list.h"
 #include "main/extensions.h"
 #include "main/framebuffer.h"
 #include "main/imports.h"
 #include "swrast/swrast.h"
 #include "swrast_setup/swrast_setup.h"
 #include "tnl/tnl.h"
-
-#include "tnl/t_pipeline.h"
-#include "tnl/t_vertex.h"
-
 #include "drivers/common/driverfuncs.h"
 
-#include "intel_screen.h"
-
 #include "i830_dri.h"
 
 #include "intel_chipset.h"
 #include "intel_buffers.h"
 #include "intel_tex.h"
 #include "intel_batchbuffer.h"
-#include "intel_blit.h"
+#include "intel_clear.h"
+#include "intel_extensions.h"
 #include "intel_pixel.h"
 #include "intel_regions.h"
 #include "intel_buffer_objects.h"
 #include "intel_fbo.h"
 #include "intel_decode.h"
 #include "intel_bufmgr.h"
+#include "intel_screen.h"
+#include "intel_swapbuffers.h"
 
 #include "drirenderbuffer.h"
 #include "vblank.h"
 #include "utils.h"
 #include "xmlpool.h"            /* for symbolic values of enum-type options */
+
+
 #ifndef INTEL_DEBUG
 int INTEL_DEBUG = (0);
 #endif
 
-#define need_GL_NV_point_sprite
-#define need_GL_ARB_multisample
-#define need_GL_ARB_point_parameters
-#define need_GL_ARB_texture_compression
-#define need_GL_ARB_vertex_buffer_object
-#define need_GL_ARB_vertex_program
-#define need_GL_ARB_window_pos
-#define need_GL_ARB_occlusion_query
-#define need_GL_EXT_blend_color
-#define need_GL_EXT_blend_equation_separate
-#define need_GL_EXT_blend_func_separate
-#define need_GL_EXT_blend_minmax
-#define need_GL_EXT_cull_vertex
-#define need_GL_EXT_fog_coord
-#define need_GL_EXT_framebuffer_object
-#define need_GL_EXT_multi_draw_arrays
-#define need_GL_EXT_secondary_color
-#define need_GL_NV_vertex_program
-#define need_GL_ATI_separate_stencil
-#define need_GL_EXT_point_parameters
-#define need_GL_VERSION_2_0
-#define need_GL_VERSION_2_1
-#define need_GL_ARB_shader_objects
-#define need_GL_ARB_vertex_shader
-
-#include "extension_helper.h"
-
-#define DRIVER_DATE                     "20080716"
+
+#define DRIVER_DATE                     "20090114"
 #define DRIVER_DATE_GEM                 "GEM " DRIVER_DATE
 
+
 static const GLubyte *
 intelGetString(GLcontext * ctx, GLenum name)
 {
@@ -151,6 +123,10 @@ intelGetString(GLcontext * ctx, GLenum name)
       case PCI_CHIP_Q33_G:
         chipset = "Intel(R) Q33";
         break;
+      case PCI_CHIP_IGD_GM:
+      case PCI_CHIP_IGD_G:
+        chipset = "Intel(R) IGD";
+        break;
       case PCI_CHIP_I965_Q:
         chipset = "Intel(R) 965Q";
         break;
@@ -259,6 +235,11 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
           region_name = "dri2 front buffer";
           break;
 
+       case __DRI_BUFFER_FAKE_FRONT_LEFT:
+          rb = intel_fb->color_rb[0];
+          region_name = "dri2 fake front buffer";
+          break;
+
        case __DRI_BUFFER_BACK_LEFT:
           rb = intel_fb->color_rb[1];
           region_name = "dri2 back buffer";
@@ -282,6 +263,9 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
           return;
        }
 
+       if (rb == NULL)
+         continue;
+
        if (rb->region) {
          dri_bo_flink(rb->region->buffer, &name);
          if (name == buffers[i].name)
@@ -317,144 +301,31 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
    driUpdateFramebufferSize(&intel->ctx, drawable);
 }
 
-static void
+void
 intel_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
 {
     struct intel_context *intel = intel_context(ctx);
     __DRIcontext *driContext = intel->driContext;
+    void (*old_viewport)(GLcontext *ctx, GLint x, GLint y,
+                        GLsizei w, GLsizei h);
 
     if (!driContext->driScreenPriv->dri2.enabled)
        return;
 
-    intel_update_renderbuffers(driContext, driContext->driDrawablePriv);
-    if (driContext->driDrawablePriv != driContext->driReadablePriv)
-       intel_update_renderbuffers(driContext, driContext->driReadablePriv);
+    if (!intel->internal_viewport_call) {
+       intel_update_renderbuffers(driContext, driContext->driDrawablePriv);
+       if (driContext->driDrawablePriv != driContext->driReadablePriv)
+         intel_update_renderbuffers(driContext, driContext->driReadablePriv);
+    }
 
+    old_viewport = ctx->Driver.Viewport;
     ctx->Driver.Viewport = NULL;
     intel->driDrawable = driContext->driDrawablePriv;
     intelWindowMoved(intel);
     intel_draw_buffer(ctx, intel->ctx.DrawBuffer);
-    ctx->Driver.Viewport = intel_viewport;
+    ctx->Driver.Viewport = old_viewport;
 }
 
-/**
- * Extension strings exported by the intel driver.
- *
- * Extensions supported by all chips supported by i830_dri, i915_dri, or
- * i965_dri.
- */
-static const struct dri_extension card_extensions[] = {
-   {"GL_ARB_multisample", GL_ARB_multisample_functions},
-   {"GL_ARB_multitexture", NULL},
-   {"GL_ARB_point_parameters", GL_ARB_point_parameters_functions},
-   {"GL_NV_point_sprite", GL_NV_point_sprite_functions},
-   {"GL_ARB_texture_border_clamp", NULL},
-   {"GL_ARB_texture_compression", GL_ARB_texture_compression_functions},
-   {"GL_ARB_texture_cube_map", NULL},
-   {"GL_ARB_texture_env_add", NULL},
-   {"GL_ARB_texture_env_combine", NULL},
-   {"GL_ARB_texture_env_crossbar", NULL},
-   {"GL_ARB_texture_env_dot3", NULL},
-   {"GL_ARB_texture_mirrored_repeat", NULL},
-   {"GL_ARB_texture_non_power_of_two",   NULL },
-   {"GL_ARB_texture_rectangle", NULL},
-   {"GL_NV_texture_rectangle", NULL},
-   {"GL_EXT_texture_rectangle", NULL},
-   {"GL_ARB_point_parameters", NULL}, 
-   {"GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions},
-   {"GL_ARB_vertex_program", GL_ARB_vertex_program_functions},
-   {"GL_ARB_window_pos", GL_ARB_window_pos_functions},
-   {"GL_EXT_blend_color", GL_EXT_blend_color_functions},
-   {"GL_EXT_blend_equation_separate",
-    GL_EXT_blend_equation_separate_functions},
-   {"GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions},
-   {"GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions},
-   {"GL_EXT_blend_logic_op", NULL},
-   {"GL_EXT_blend_subtract", NULL},
-   {"GL_EXT_cull_vertex", GL_EXT_cull_vertex_functions},
-   {"GL_EXT_fog_coord", GL_EXT_fog_coord_functions},
-   {"GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions},
-   {"GL_ATI_separate_stencil", GL_ATI_separate_stencil_functions},
-#if 1                           /* XXX FBO temporary? */
-   {"GL_EXT_packed_depth_stencil", NULL},
-#endif
-   {"GL_EXT_secondary_color", GL_EXT_secondary_color_functions},
-   {"GL_EXT_stencil_wrap", NULL},
-   {"GL_EXT_texture_edge_clamp", NULL},
-   {"GL_EXT_texture_env_combine", NULL},
-   {"GL_EXT_texture_env_dot3", NULL},
-   {"GL_EXT_texture_filter_anisotropic", NULL},
-   {"GL_EXT_texture_lod_bias", NULL},
-   {"GL_3DFX_texture_compression_FXT1", NULL},
-   {"GL_APPLE_client_storage", NULL},
-   {"GL_MESA_pack_invert", NULL},
-   {"GL_MESA_ycbcr_texture", NULL},
-   {"GL_NV_blend_square", NULL},
-   {"GL_NV_vertex_program", GL_NV_vertex_program_functions},
-   {"GL_NV_vertex_program1_1", NULL},
-   { "GL_SGIS_generate_mipmap", NULL },
-   {NULL, NULL}
-};
-
-static const struct dri_extension brw_extensions[] = {
-   { "GL_ARB_shading_language_100",       GL_VERSION_2_0_functions},
-   { "GL_ARB_shading_language_120",       GL_VERSION_2_1_functions},
-   { "GL_ARB_shader_objects",             GL_ARB_shader_objects_functions},
-   { "GL_ARB_vertex_shader",              GL_ARB_vertex_shader_functions},
-   { "GL_ARB_point_sprite",              NULL},
-   { "GL_ARB_fragment_shader",            NULL },
-   { "GL_ARB_draw_buffers",               NULL },
-   { "GL_ARB_depth_texture",              NULL },
-   { "GL_ARB_fragment_program",           NULL },
-   { "GL_ARB_shadow",                     NULL },
-   { "GL_EXT_shadow_funcs",               NULL },
-   { "GL_ARB_fragment_program_shadow",    NULL },
-   /* ARB extn won't work if not enabled */
-   { "GL_SGIX_depth_texture",             NULL },
-   { "GL_EXT_texture_sRGB",              NULL},
-   { NULL,                                NULL }
-};
-
-#ifdef I915_MMIO_READ
-static const struct dri_extension arb_oc_extensions[] = {
-   {"GL_ARB_occlusion_query",            GL_ARB_occlusion_query_functions},
-   {NULL, NULL}
-};
-#endif
-
-static const struct dri_extension ttm_extensions[] = {
-   {"GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions},
-   {"GL_ARB_pixel_buffer_object", NULL},
-   {NULL, NULL}
-};
-
-/**
- * Initializes potential list of extensions if ctx == NULL, or actually enables
- * extensions for a context.
- */
-void intelInitExtensions(GLcontext *ctx, GLboolean enable_imaging)
-{
-   struct intel_context *intel = ctx?intel_context(ctx):NULL;
-
-   /* Disable imaging extension until convolution is working in teximage paths.
-    */
-   enable_imaging = GL_FALSE;
-
-   driInitExtensions(ctx, card_extensions, enable_imaging);
-
-   if (intel == NULL || intel->ttm)
-      driInitExtensions(ctx, ttm_extensions, GL_FALSE);
-
-#ifdef I915_MMIO_READ
-   if (intel == NULL || 
-       (IS_965(intel->intelScreen->deviceID) && 
-       intel->intelScreen->drmMinor >= 8))
-      driInitExtensions(ctx, arb_oc_extensions, GL_FALSE);
-#endif
-
-   if (intel == NULL || IS_965(intel->intelScreen->deviceID))
-      driInitExtensions(ctx, brw_extensions, GL_FALSE);
-}
 
 static const struct dri_debug_control debug_control[] = {
    { "tex",   DEBUG_TEXTURE},
@@ -505,9 +376,8 @@ intelInvalidateState(GLcontext * ctx, GLuint new_state)
       intel->vtbl.invalidate_state( intel, new_state );
 }
 
-
-void
-intelFlush(GLcontext * ctx)
+static void
+intel_flush(GLcontext *ctx, GLboolean needs_mi_flush)
 {
    struct intel_context *intel = intel_context(ctx);
 
@@ -521,10 +391,44 @@ intelFlush(GLcontext * ctx)
     * lands onscreen in a timely manner, even if the X Server doesn't trigger
     * a flush for us.
     */
-   intel_batchbuffer_emit_mi_flush(intel->batch);
+   if (needs_mi_flush)
+      intel_batchbuffer_emit_mi_flush(intel->batch);
 
    if (intel->batch->map != intel->batch->ptr)
       intel_batchbuffer_flush(intel->batch);
+
+   if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) {
+      __DRIscreen *const screen = intel->intelScreen->driScrnPriv;
+
+      if (screen->dri2.loader &&
+          (screen->dri2.loader->base.version >= 2)
+         && (screen->dri2.loader->flushFrontBuffer != NULL)) {
+        (*screen->dri2.loader->flushFrontBuffer)(intel->driDrawable,
+                                                 intel->driDrawable->loaderPrivate);
+
+        /* Only clear the dirty bit if front-buffer rendering is no longer
+         * enabled.  This is done so that the dirty bit can only be set in
+         * glDrawBuffer.  Otherwise the dirty bit would have to be set at
+         * each of N places that do rendering.  This has worse performances,
+         * but it is much easier to get correct.
+         */
+        if (intel->is_front_buffer_rendering) {
+           intel->front_buffer_dirty = GL_FALSE;
+        }
+      }
+   }
+}
+
+void
+intelFlush(GLcontext * ctx)
+{
+   intel_flush(ctx, GL_FALSE);
+}
+
+static void
+intel_glFlush(GLcontext *ctx)
+{
+   intel_flush(ctx, GL_TRUE);
 }
 
 void
@@ -548,62 +452,24 @@ intelFinish(GLcontext * ctx)
    }
 }
 
-#ifdef I915_MMIO_READ
-static void
-intelBeginQuery(GLcontext *ctx, struct gl_query_object *q)
-{
-       struct intel_context *intel = intel_context( ctx );
-       struct drm_i915_mmio io = {
-               .read_write = I915_MMIO_READ,
-               .reg = MMIO_REGS_PS_DEPTH_COUNT,
-               .data = &q->Result 
-       };
-       intel->stats_wm++;
-       intelFinish(&intel->ctx);
-       drmCommandWrite(intel->driFd, DRM_I915_MMIO, &io, sizeof(io));
-}
-
-static void
-intelEndQuery(GLcontext *ctx, struct gl_query_object *q)
-{
-       struct intel_context *intel = intel_context( ctx );
-       GLuint64EXT tmp;        
-       struct drm_i915_mmio io = {
-               .read_write = I915_MMIO_READ,
-               .reg = MMIO_REGS_PS_DEPTH_COUNT,
-               .data = &tmp
-       };
-       intelFinish(&intel->ctx);
-       drmCommandWrite(intel->driFd, DRM_I915_MMIO, &io, sizeof(io));
-       q->Result = tmp - q->Result;
-       q->Ready = GL_TRUE;
-       intel->stats_wm--;
-}
-#endif
-
 void
 intelInitDriverFunctions(struct dd_function_table *functions)
 {
    _mesa_init_driver_functions(functions);
 
-   functions->Flush = intelFlush;
+   functions->Flush = intel_glFlush;
    functions->Finish = intelFinish;
    functions->GetString = intelGetString;
    functions->UpdateState = intelInvalidateState;
-   functions->Viewport = intel_viewport;
 
    functions->CopyColorTable = _swrast_CopyColorTable;
    functions->CopyColorSubTable = _swrast_CopyColorSubTable;
    functions->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
    functions->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
 
-#ifdef I915_MMIO_READ
-   functions->BeginQuery = intelBeginQuery;
-   functions->EndQuery = intelEndQuery;
-#endif
-
    intelInitTextureFuncs(functions);
    intelInitStateFuncs(functions);
+   intelInitClearFuncs(functions);
    intelInitBufferFuncs(functions);
    intelInitPixelFuncs(functions);
 }
@@ -639,9 +505,6 @@ intelInitContext(struct intel_context *intel,
    intel->driFd = sPriv->fd;
    intel->driHwLock = sPriv->lock;
 
-   intel->width = intelScreen->width;
-   intel->height = intelScreen->height;
-
    driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
                        intel->driScreen->myNum,
                       IS_965(intelScreen->deviceID) ? "i965" : "i915");
@@ -671,10 +534,16 @@ intelInitContext(struct intel_context *intel,
     * start.
     */
    if (getenv("INTEL_STRICT_CONFORMANCE")) {
-      intel->strict_conformance = 1;
+      unsigned int value = atoi(getenv("INTEL_STRICT_CONFORMANCE"));
+      if (value > 0) {
+         intel->conformance_mode = value;
+      }
+      else {
+         intel->conformance_mode = 1;
+      }
    }
 
-   if (intel->strict_conformance) {
+   if (intel->conformance_mode > 0) {
       ctx->Const.MinLineWidth = 1.0;
       ctx->Const.MinLineWidthAA = 1.0;
       ctx->Const.MaxLineWidth = 1.0;
@@ -742,8 +611,6 @@ intelInitContext(struct intel_context *intel,
 
    intel->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);
 
-   _math_matrix_ctr(&intel->ViewportMatrix);
-
    if (IS_965(intelScreen->deviceID) && !intel->intelScreen->irq_active) {
       _mesa_printf("IRQs not active.  Exiting\n");
       exit(1);
@@ -779,6 +646,16 @@ intelInitContext(struct intel_context *intel,
       intel->no_rast = 1;
    }
 
+   if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
+      fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
+      intel->always_flush_batch = 1;
+   }
+
+   if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
+      fprintf(stderr, "flushing GPU caches before/after each draw call\n");
+      intel->always_flush_cache = 1;
+   }
+
    /* Disable all hardware rendering (skip emitting batches and fences/waits
     * to the kernel)
     */
@@ -810,7 +687,12 @@ intelDestroyContext(__DRIcontextPrivate * driContextPriv)
       intel->Fallback = 0;      /* don't call _swrast_Flush later */
 
       intel_batchbuffer_free(intel->batch);
+      intel->batch = NULL;
+
       free(intel->prim.vb);
+      intel->prim.vb = NULL;
+      dri_bo_unreference(intel->prim.vb_bo);
+      intel->prim.vb_bo = NULL;
 
       if (release_texture_heaps) {
          /* This share group is about to go away, free our private
@@ -820,6 +702,12 @@ intelDestroyContext(__DRIcontextPrivate * driContextPriv)
             fprintf(stderr, "do something to free texture heaps\n");
       }
 
+      intel_region_release(&intel->front_region);
+      intel_region_release(&intel->back_region);
+      intel_region_release(&intel->depth_region);
+
+      driDestroyOptionCache(&intel->optionCache);
+
       /* free the Mesa context */
       _mesa_free_context_data(&intel->ctx);
    }
@@ -865,12 +753,7 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
            intel_renderbuffer_set_region(intel_fb->color_rb[1],
                                          intel->back_region);
          }
-#if 0
-         if (intel_fb->color_rb[2]) {
-           intel_renderbuffer_set_region(intel_fb->color_rb[2],
-                                         intel->third_region);
-         }
-#endif
+
          if (irbDepth) {
            intel_renderbuffer_set_region(irbDepth, intel->depth_region);
          }
@@ -903,11 +786,16 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
                  ? driGetDefaultVBlankFlags(&intel->optionCache)
                 : VBLANK_FLAG_NO_IRQ;
 
+              /* Prevent error printf if one crtc is disabled, this will
+               * be properly calculated in intelWindowMoved() next.
+               */
+               driDrawPriv->vblFlags = intelFixupVblank(intel, driDrawPriv);
+
               (*psp->systemTime->getUST) (&intel_fb->swap_ust);
               driDrawableInitVBlank(driDrawPriv);
               intel_fb->vbl_waited = driDrawPriv->vblSeq;
 
-              for (i = 0; i < (intel->intelScreen->third.handle ? 3 : 2); i++) {
+              for (i = 0; i < 2; i++) {
                  if (intel_fb->color_rb[i])
                     intel_fb->color_rb[i]->vbl_pending = driDrawPriv->vblSeq;
               }
@@ -931,7 +819,7 @@ intelContendedLock(struct intel_context *intel, GLuint flags)
 {
    __DRIdrawablePrivate *dPriv = intel->driDrawable;
    __DRIscreenPrivate *sPriv = intel->driScreen;
-   volatile struct drm_i915_sarea *sarea = intel->sarea;
+   volatile drm_i915_sarea_t *sarea = intel->sarea;
    int me = intel->hHWContext;
 
    drmGetLock(intel->driFd, intel->hHWContext, flags);
@@ -971,38 +859,6 @@ intelContendedLock(struct intel_context *intel, GLuint flags)
                 sarea->ctxOwner, intel->hHWContext);
    }
 
-   if (sarea->width != intel->width || sarea->height != intel->height) {
-       int numClipRects = intel->numClipRects;
-
-       /*
-       * FIXME: Really only need to do this when drawing to a
-       * common back- or front buffer.
-       */
-
-       /*
-       * This will essentially drop the outstanding batchbuffer on
-       * the floor.
-       */
-       intel->numClipRects = 0;
-
-       if (intel->Fallback)
-          _swrast_flush(&intel->ctx);
-
-       if (!IS_965(intel->intelScreen->deviceID))
-          INTEL_FIREVERTICES(intel);
-
-       if (intel->batch->map != intel->batch->ptr)
-          intel_batchbuffer_flush(intel->batch);
-
-       intel->numClipRects = numClipRects;
-
-       /* force window update */
-       intel->lastStamp = 0;
-
-       intel->width = sarea->width;
-       intel->height = sarea->height;
-   }
-
    /* Drawable changed?
     */
    if (dPriv && intel->lastStamp != dPriv->lastStamp) {