glstate: Dump images (glBindImage) to displayed surfaces.

apitrace · Nov 4, 2015 · 34b56c7 · 34b56c7
1 parent b2c7610
commit 34b56c7
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Showing 3 changed files with 53 additions and 0 deletions.
diff --git a/retrace/glstate.cpp b/retrace/glstate.cpp
@@ -59,6 +59,8 @@ Context::Context(void) {
     ARB_get_program_binary = ext.has("GL_ARB_get_program_binary");
     KHR_debug = !ES && ext.has("GL_KHR_debug");
     EXT_debug_label = ext.has("GL_EXT_debug_label");
+    ARB_direct_state_access = ext.has("GL_ARB_direct_state_access");
+    ARB_shader_image_load_store = ext.has("GL_ARB_shader_image_load_store");
 
     NV_read_depth_stencil = ES && ext.has("GL_NV_read_depth_stencil");
 }

diff --git a/retrace/glstate_images.cpp b/retrace/glstate_images.cpp
@@ -608,6 +608,53 @@ dumpActiveTexture(StateWriter &writer, Context &context, GLenum target, GLuint t
 }
 
 
+static void
+dumpTextureImages(StateWriter &writer, Context &context)
+{
+    if(!(context.ARB_shader_image_load_store &&
+         context.ARB_direct_state_access)) {
+        return;
+    }
+
+    GLint maxImageUnits = 0;
+    glGetIntegerv(GL_MAX_IMAGE_UNITS, &maxImageUnits);
+    glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT);
+
+    for(GLint imageUnit = 0; imageUnit < maxImageUnits; ++imageUnit) {
+        GLint texture = 0;
+        glGetIntegeri_v(GL_IMAGE_BINDING_NAME, imageUnit, &texture);
+        if(texture) {
+            GLint level = 0;
+            glGetIntegeri_v(GL_IMAGE_BINDING_LEVEL, imageUnit, &level);
+            GLint isLayered = 0;
+            glGetIntegeri_v(GL_IMAGE_BINDING_LAYERED, imageUnit, &isLayered);
+            GLint layer = 0;
+            glGetIntegeri_v(GL_IMAGE_BINDING_LAYER, imageUnit, &layer);
+            std::stringstream label;
+            label << "Image Unit " << imageUnit;
+            if (level) {
+                label << ", level = " << level;
+            }
+            if (isLayered) {
+                label << ", layer = " << layer;
+            }
+            GLint target = 0;
+            // relies on GL_ARB_direct_state_access
+            glGetTextureParameteriv(texture, GL_TEXTURE_TARGET, &target);
+            GLint previousTexture = 0;
+            glGetIntegerv(getTextureBinding(target), &previousTexture);
+
+            glBindTexture(target, texture);
+            char *object_label = getObjectLabel(context, GL_TEXTURE, texture);
+            dumpActiveTextureLevel(writer, context, target, level, label.str(),
+                                   object_label);
+            free(object_label);
+            glBindTexture(target, previousTexture);
+        }
+    }
+}
+
+
 void
 dumpTextures(StateWriter &writer, Context &context)
 {
@@ -667,6 +714,8 @@ dumpTextures(StateWriter &writer, Context &context)
 
     glActiveTexture(active_texture);
 
+    dumpTextureImages(writer, context);
+
     writer.endObject();
     writer.endMember(); // textures
 }

diff --git a/retrace/glstate_internal.hpp b/retrace/glstate_internal.hpp
@@ -50,6 +50,8 @@ struct Context
     unsigned KHR_debug:1;
     unsigned EXT_debug_label:1;
     unsigned NV_read_depth_stencil:1;  /* ES only */
+    unsigned ARB_shader_image_load_store:1;
+    unsigned ARB_direct_state_access:1;
 
     Context(void);
 };