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-rw-r--r--src/mesa/Makefile.sources1
-rw-r--r--src/mesa/main/shaderimage.c477
-rw-r--r--src/mesa/main/shaderimage.h42
3 files changed, 520 insertions, 0 deletions
diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources
index 39525bc5b82..d14823db9e1 100644
--- a/src/mesa/Makefile.sources
+++ b/src/mesa/Makefile.sources
@@ -81,6 +81,7 @@ MAIN_FILES = \
$(SRCDIR)main/scissor.c \
$(SRCDIR)main/set.c \
$(SRCDIR)main/shaderapi.c \
+ $(SRCDIR)main/shaderimage.c \
$(SRCDIR)main/shaderobj.c \
$(SRCDIR)main/shader_query.cpp \
$(SRCDIR)main/shared.c \
diff --git a/src/mesa/main/shaderimage.c b/src/mesa/main/shaderimage.c
new file mode 100644
index 00000000000..ade0a7b822d
--- /dev/null
+++ b/src/mesa/main/shaderimage.c
@@ -0,0 +1,477 @@
+/*
+ * Copyright 2013 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Francisco Jerez <[email protected]>
+ */
+
+#include <assert.h>
+
+#include "shaderimage.h"
+#include "mtypes.h"
+#include "formats.h"
+#include "errors.h"
+#include "context.h"
+#include "texobj.h"
+#include "teximage.h"
+
+/*
+ * Define endian-invariant aliases for some mesa formats that are
+ * defined in terms of their channel layout from LSB to MSB in a
+ * 32-bit word. The actual byte offsets matter here because the user
+ * is allowed to bit-cast one format into another and get predictable
+ * results.
+ */
+#ifdef MESA_BIG_ENDIAN
+# define MESA_FORMAT_RGBA_8 MESA_FORMAT_RGBA8888
+# define MESA_FORMAT_RG_16 MESA_FORMAT_RG1616
+# define MESA_FORMAT_RG_8 MESA_FORMAT_RG88
+# define MESA_FORMAT_SIGNED_RGBA_8 MESA_FORMAT_SIGNED_RGBA8888
+# define MESA_FORMAT_SIGNED_RG_16 MESA_FORMAT_SIGNED_RG1616
+# define MESA_FORMAT_SIGNED_RG_8 MESA_FORMAT_SIGNED_RG88
+#else
+# define MESA_FORMAT_RGBA_8 MESA_FORMAT_RGBA8888_REV
+# define MESA_FORMAT_RG_16 MESA_FORMAT_GR1616
+# define MESA_FORMAT_RG_8 MESA_FORMAT_GR88
+# define MESA_FORMAT_SIGNED_RGBA_8 MESA_FORMAT_SIGNED_RGBA8888_REV
+# define MESA_FORMAT_SIGNED_RG_16 MESA_FORMAT_SIGNED_GR1616
+# define MESA_FORMAT_SIGNED_RG_8 MESA_FORMAT_SIGNED_RG88_REV
+#endif
+
+static gl_format
+get_image_format(GLenum format)
+{
+ switch (format) {
+ case GL_RGBA32F:
+ return MESA_FORMAT_RGBA_FLOAT32;
+
+ case GL_RGBA16F:
+ return MESA_FORMAT_RGBA_FLOAT16;
+
+ case GL_RG32F:
+ return MESA_FORMAT_RG_FLOAT32;
+
+ case GL_RG16F:
+ return MESA_FORMAT_RG_FLOAT16;
+
+ case GL_R11F_G11F_B10F:
+ return MESA_FORMAT_R11_G11_B10_FLOAT;
+
+ case GL_R32F:
+ return MESA_FORMAT_R_FLOAT32;
+
+ case GL_R16F:
+ return MESA_FORMAT_R_FLOAT16;
+
+ case GL_RGBA32UI:
+ return MESA_FORMAT_RGBA_UINT32;
+
+ case GL_RGBA16UI:
+ return MESA_FORMAT_RGBA_UINT16;
+
+ case GL_RGB10_A2UI:
+ return MESA_FORMAT_ABGR2101010_UINT;
+
+ case GL_RGBA8UI:
+ return MESA_FORMAT_RGBA_UINT8;
+
+ case GL_RG32UI:
+ return MESA_FORMAT_RG_UINT32;
+
+ case GL_RG16UI:
+ return MESA_FORMAT_RG_UINT16;
+
+ case GL_RG8UI:
+ return MESA_FORMAT_RG_UINT8;
+
+ case GL_R32UI:
+ return MESA_FORMAT_R_UINT32;
+
+ case GL_R16UI:
+ return MESA_FORMAT_R_UINT16;
+
+ case GL_R8UI:
+ return MESA_FORMAT_R_UINT8;
+
+ case GL_RGBA32I:
+ return MESA_FORMAT_RGBA_INT32;
+
+ case GL_RGBA16I:
+ return MESA_FORMAT_RGBA_INT16;
+
+ case GL_RGBA8I:
+ return MESA_FORMAT_RGBA_INT8;
+
+ case GL_RG32I:
+ return MESA_FORMAT_RG_INT32;
+
+ case GL_RG16I:
+ return MESA_FORMAT_RG_INT16;
+
+ case GL_RG8I:
+ return MESA_FORMAT_RG_INT8;
+
+ case GL_R32I:
+ return MESA_FORMAT_R_INT32;
+
+ case GL_R16I:
+ return MESA_FORMAT_R_INT16;
+
+ case GL_R8I:
+ return MESA_FORMAT_R_INT8;
+
+ case GL_RGBA16:
+ return MESA_FORMAT_RGBA_16;
+
+ case GL_RGB10_A2:
+ return MESA_FORMAT_ABGR2101010;
+
+ case GL_RGBA8:
+ return MESA_FORMAT_RGBA_8;
+
+ case GL_RG16:
+ return MESA_FORMAT_RG_16;
+
+ case GL_RG8:
+ return MESA_FORMAT_RG_8;
+
+ case GL_R16:
+ return MESA_FORMAT_R16;
+
+ case GL_R8:
+ return MESA_FORMAT_R8;
+
+ case GL_RGBA16_SNORM:
+ return MESA_FORMAT_SIGNED_RGBA_16;
+
+ case GL_RGBA8_SNORM:
+ return MESA_FORMAT_SIGNED_RGBA_8;
+
+ case GL_RG16_SNORM:
+ return MESA_FORMAT_SIGNED_RG_16;
+
+ case GL_RG8_SNORM:
+ return MESA_FORMAT_SIGNED_RG_8;
+
+ case GL_R16_SNORM:
+ return MESA_FORMAT_SIGNED_R16;
+
+ case GL_R8_SNORM:
+ return MESA_FORMAT_SIGNED_R8;
+
+ default:
+ return MESA_FORMAT_NONE;
+ }
+}
+
+enum image_format_class
+{
+ /** Not a valid image format. */
+ IMAGE_FORMAT_CLASS_NONE = 0,
+
+ /** Classes of image formats you can cast into each other. */
+ /** \{ */
+ IMAGE_FORMAT_CLASS_1X8,
+ IMAGE_FORMAT_CLASS_1X16,
+ IMAGE_FORMAT_CLASS_1X32,
+ IMAGE_FORMAT_CLASS_2X8,
+ IMAGE_FORMAT_CLASS_2X16,
+ IMAGE_FORMAT_CLASS_2X32,
+ IMAGE_FORMAT_CLASS_10_11_11,
+ IMAGE_FORMAT_CLASS_4X8,
+ IMAGE_FORMAT_CLASS_4X16,
+ IMAGE_FORMAT_CLASS_4X32,
+ IMAGE_FORMAT_CLASS_2_10_10_10
+ /** \} */
+};
+
+static enum image_format_class
+get_image_format_class(gl_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_RGBA_FLOAT32:
+ return IMAGE_FORMAT_CLASS_4X32;
+
+ case MESA_FORMAT_RGBA_FLOAT16:
+ return IMAGE_FORMAT_CLASS_4X16;
+
+ case MESA_FORMAT_RG_FLOAT32:
+ return IMAGE_FORMAT_CLASS_2X32;
+
+ case MESA_FORMAT_RG_FLOAT16:
+ return IMAGE_FORMAT_CLASS_2X16;
+
+ case MESA_FORMAT_R11_G11_B10_FLOAT:
+ return IMAGE_FORMAT_CLASS_10_11_11;
+
+ case MESA_FORMAT_R_FLOAT32:
+ return IMAGE_FORMAT_CLASS_1X32;
+
+ case MESA_FORMAT_R_FLOAT16:
+ return IMAGE_FORMAT_CLASS_1X16;
+
+ case MESA_FORMAT_RGBA_UINT32:
+ return IMAGE_FORMAT_CLASS_4X32;
+
+ case MESA_FORMAT_RGBA_UINT16:
+ return IMAGE_FORMAT_CLASS_4X16;
+
+ case MESA_FORMAT_ABGR2101010_UINT:
+ return IMAGE_FORMAT_CLASS_2_10_10_10;
+
+ case MESA_FORMAT_RGBA_UINT8:
+ return IMAGE_FORMAT_CLASS_4X8;
+
+ case MESA_FORMAT_RG_UINT32:
+ return IMAGE_FORMAT_CLASS_2X32;
+
+ case MESA_FORMAT_RG_UINT16:
+ return IMAGE_FORMAT_CLASS_2X16;
+
+ case MESA_FORMAT_RG_UINT8:
+ return IMAGE_FORMAT_CLASS_2X8;
+
+ case MESA_FORMAT_R_UINT32:
+ return IMAGE_FORMAT_CLASS_1X32;
+
+ case MESA_FORMAT_R_UINT16:
+ return IMAGE_FORMAT_CLASS_1X16;
+
+ case MESA_FORMAT_R_UINT8:
+ return IMAGE_FORMAT_CLASS_1X8;
+
+ case MESA_FORMAT_RGBA_INT32:
+ return IMAGE_FORMAT_CLASS_4X32;
+
+ case MESA_FORMAT_RGBA_INT16:
+ return IMAGE_FORMAT_CLASS_4X16;
+
+ case MESA_FORMAT_RGBA_INT8:
+ return IMAGE_FORMAT_CLASS_4X8;
+
+ case MESA_FORMAT_RG_INT32:
+ return IMAGE_FORMAT_CLASS_2X32;
+
+ case MESA_FORMAT_RG_INT16:
+ return IMAGE_FORMAT_CLASS_2X16;
+
+ case MESA_FORMAT_RG_INT8:
+ return IMAGE_FORMAT_CLASS_2X8;
+
+ case MESA_FORMAT_R_INT32:
+ return IMAGE_FORMAT_CLASS_1X32;
+
+ case MESA_FORMAT_R_INT16:
+ return IMAGE_FORMAT_CLASS_1X16;
+
+ case MESA_FORMAT_R_INT8:
+ return IMAGE_FORMAT_CLASS_1X8;
+
+ case MESA_FORMAT_RGBA_16:
+ return IMAGE_FORMAT_CLASS_4X16;
+
+ case MESA_FORMAT_ABGR2101010:
+ return IMAGE_FORMAT_CLASS_2_10_10_10;
+
+ case MESA_FORMAT_RGBA_8:
+ return IMAGE_FORMAT_CLASS_4X8;
+
+ case MESA_FORMAT_RG_16:
+ return IMAGE_FORMAT_CLASS_2X16;
+
+ case MESA_FORMAT_RG_8:
+ return IMAGE_FORMAT_CLASS_2X8;
+
+ case MESA_FORMAT_R16:
+ return IMAGE_FORMAT_CLASS_1X16;
+
+ case MESA_FORMAT_R8:
+ return IMAGE_FORMAT_CLASS_1X8;
+
+ case MESA_FORMAT_SIGNED_RGBA_16:
+ return IMAGE_FORMAT_CLASS_4X16;
+
+ case MESA_FORMAT_SIGNED_RGBA_8:
+ return IMAGE_FORMAT_CLASS_4X8;
+
+ case MESA_FORMAT_SIGNED_RG_16:
+ return IMAGE_FORMAT_CLASS_2X16;
+
+ case MESA_FORMAT_SIGNED_RG_8:
+ return IMAGE_FORMAT_CLASS_2X8;
+
+ case MESA_FORMAT_SIGNED_R16:
+ return IMAGE_FORMAT_CLASS_1X16;
+
+ case MESA_FORMAT_SIGNED_R8:
+ return IMAGE_FORMAT_CLASS_1X8;
+
+ default:
+ return IMAGE_FORMAT_CLASS_NONE;
+ }
+}
+
+static GLboolean
+validate_image_unit(struct gl_context *ctx, struct gl_image_unit *u)
+{
+ struct gl_texture_object *t = u->TexObj;
+ struct gl_texture_image *img;
+
+ if (!t || u->Level < t->BaseLevel ||
+ u->Level > t->_MaxLevel)
+ return GL_FALSE;
+
+ _mesa_test_texobj_completeness(ctx, t);
+
+ if ((u->Level == t->BaseLevel && !t->_BaseComplete) ||
+ (u->Level != t->BaseLevel && !t->_MipmapComplete))
+ return GL_FALSE;
+
+ if (_mesa_tex_target_is_layered(t->Target) &&
+ u->Layer >= _mesa_get_texture_layers(t, u->Level))
+ return GL_FALSE;
+
+ if (t->Target == GL_TEXTURE_CUBE_MAP)
+ img = t->Image[u->Layer][u->Level];
+ else
+ img = t->Image[0][u->Level];
+
+ if (!img || img->Border ||
+ get_image_format_class(img->TexFormat) == IMAGE_FORMAT_CLASS_NONE ||
+ img->NumSamples > ctx->Const.MaxImageSamples)
+ return GL_FALSE;
+
+ switch (t->ImageFormatCompatibilityType) {
+ case GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE:
+ if (_mesa_get_format_bytes(img->TexFormat) !=
+ _mesa_get_format_bytes(u->_ActualFormat))
+ return GL_FALSE;
+ break;
+
+ case GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS:
+ if (get_image_format_class(img->TexFormat) !=
+ get_image_format_class(u->_ActualFormat))
+ return GL_FALSE;
+ break;
+
+ default:
+ assert(!"Unexpected image format compatibility type");
+ }
+
+ return GL_TRUE;
+}
+
+static GLboolean
+validate_bind_image_texture(struct gl_context *ctx, GLuint unit,
+ GLuint texture, GLint level, GLboolean layered,
+ GLint layer, GLenum access, GLenum format)
+{
+ assert(ctx->Const.MaxImageUnits <= MAX_IMAGE_UNITS);
+
+ if (unit >= ctx->Const.MaxImageUnits) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(unit)");
+ return GL_FALSE;
+ }
+
+ if (level < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(level)");
+ return GL_FALSE;
+ }
+
+ if (layer < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(layer)");
+ return GL_FALSE;
+ }
+
+ if (access != GL_READ_ONLY &&
+ access != GL_WRITE_ONLY &&
+ access != GL_READ_WRITE) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(access)");
+ return GL_FALSE;
+ }
+
+ if (!get_image_format(format)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(format)");
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+void GLAPIENTRY
+_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
+ GLboolean layered, GLint layer, GLenum access,
+ GLenum format)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_object *t = NULL;
+ struct gl_image_unit *u;
+
+ if (!validate_bind_image_texture(ctx, unit, texture, level,
+ layered, layer, access, format))
+ return;
+
+ u = &ctx->ImageUnits[unit];
+
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;
+
+ if (texture) {
+ t = _mesa_lookup_texture(ctx, texture);
+ if (!t) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(texture)");
+ return;
+ }
+
+ _mesa_reference_texobj(&u->TexObj, t);
+ u->Level = level;
+ u->Access = access;
+ u->Format = format;
+ u->_ActualFormat = get_image_format(format);
+
+ if (_mesa_tex_target_is_layered(t->Target)) {
+ u->Layered = layered;
+ u->Layer = (layered ? 0 : layer);
+ } else {
+ u->Layered = GL_FALSE;
+ u->Layer = 0;
+ }
+
+ } else {
+ _mesa_reference_texobj(&u->TexObj, NULL);
+ }
+
+ u->_Valid = validate_image_unit(ctx, u);
+
+ if (ctx->Driver.BindImageTexture)
+ ctx->Driver.BindImageTexture(ctx, u, t, level, layered,
+ layer, access, format);
+}
+
+void GLAPIENTRY
+_mesa_MemoryBarrier(GLbitfield barriers)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (ctx->Driver.MemoryBarrier)
+ ctx->Driver.MemoryBarrier(ctx, barriers);
+}
diff --git a/src/mesa/main/shaderimage.h b/src/mesa/main/shaderimage.h
new file mode 100644
index 00000000000..f9d550b02e7
--- /dev/null
+++ b/src/mesa/main/shaderimage.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2013 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Francisco Jerez <[email protected]>
+ */
+
+#ifndef SHADERIMAGE_H
+#define SHADERIMAGE_H
+
+#include "glheader.h"
+
+struct gl_context;
+
+void GLAPIENTRY
+_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
+ GLboolean layered, GLint layer, GLenum access,
+ GLenum format);
+
+void GLAPIENTRY
+_mesa_MemoryBarrier(GLbitfield barriers);
+
+#endif
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