diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/entry_points_gles_2_0_ext.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/entry_points_gles_2_0_ext.cpp | 1058 |
1 files changed, 1058 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/entry_points_gles_2_0_ext.cpp b/src/3rdparty/angle/src/libGLESv2/entry_points_gles_2_0_ext.cpp new file mode 100644 index 0000000000..8be6ae7d2f --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/entry_points_gles_2_0_ext.cpp @@ -0,0 +1,1058 @@ +// +// Copyright(c) 2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// entry_points_gles_2_0_ext.cpp : Implements the GLES 2.0 extension entry points. + +#include "libGLESv2/entry_points_gles_2_0_ext.h" +#include "libGLESv2/global_state.h" + +#include "libANGLE/Buffer.h" +#include "libANGLE/Context.h" +#include "libANGLE/Error.h" +#include "libANGLE/Fence.h" +#include "libANGLE/Framebuffer.h" +#include "libANGLE/Shader.h" +#include "libANGLE/Query.h" + +#include "libANGLE/validationES.h" +#include "libANGLE/validationES2.h" +#include "libANGLE/validationES3.h" + +#include "common/debug.h" +#include "common/utilities.h" + +namespace gl +{ + +void GL_APIENTRY BeginQueryEXT(GLenum target, GLuint id) +{ + EVENT("(GLenum target = 0x%X, GLuint %d)", target, id); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateBeginQuery(context, target, id)) + { + return; + } + + Error error = context->beginQuery(target, id); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY DeleteFencesNV(GLsizei n, const GLuint* fences) +{ + EVENT("(GLsizei n = %d, const GLuint* fences = 0x%0.8p)", n, fences); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (n < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + for (int i = 0; i < n; i++) + { + context->deleteFenceNV(fences[i]); + } + } +} + +void GL_APIENTRY DeleteQueriesEXT(GLsizei n, const GLuint *ids) +{ + EVENT("(GLsizei n = %d, const GLuint *ids = 0x%0.8p)", n, ids); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (n < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + for (int i = 0; i < n; i++) + { + context->deleteQuery(ids[i]); + } + } +} + +void GL_APIENTRY DrawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei primcount) +{ + EVENT("(GLenum mode = 0x%X, GLint first = %d, GLsizei count = %d, GLsizei primcount = %d)", mode, first, count, primcount); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateDrawArraysInstancedANGLE(context, mode, first, count, primcount)) + { + return; + } + + Error error = context->drawArrays(mode, first, count, primcount); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY DrawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLsizei primcount) +{ + EVENT("(GLenum mode = 0x%X, GLsizei count = %d, GLenum type = 0x%X, const GLvoid* indices = 0x%0.8p, GLsizei primcount = %d)", + mode, count, type, indices, primcount); + + Context *context = GetValidGlobalContext(); + if (context) + { + rx::RangeUI indexRange; + if (!ValidateDrawElementsInstancedANGLE(context, mode, count, type, indices, primcount, &indexRange)) + { + return; + } + + Error error = context->drawElements(mode, count, type, indices, primcount, indexRange); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY EndQueryEXT(GLenum target) +{ + EVENT("GLenum target = 0x%X)", target); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateEndQuery(context, target)) + { + return; + } + + Error error = context->endQuery(target); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY FinishFenceNV(GLuint fence) +{ + EVENT("(GLuint fence = %d)", fence); + + Context *context = GetValidGlobalContext(); + if (context) + { + FenceNV *fenceObject = context->getFenceNV(fence); + + if (fenceObject == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + if (fenceObject->isFence() != GL_TRUE) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + fenceObject->finishFence(); + } +} + +void GL_APIENTRY GenFencesNV(GLsizei n, GLuint* fences) +{ + EVENT("(GLsizei n = %d, GLuint* fences = 0x%0.8p)", n, fences); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (n < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + for (int i = 0; i < n; i++) + { + fences[i] = context->createFenceNV(); + } + } +} + +void GL_APIENTRY GenQueriesEXT(GLsizei n, GLuint* ids) +{ + EVENT("(GLsizei n = %d, GLuint* ids = 0x%0.8p)", n, ids); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (n < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + for (GLsizei i = 0; i < n; i++) + { + ids[i] = context->createQuery(); + } + } +} + +void GL_APIENTRY GetFenceivNV(GLuint fence, GLenum pname, GLint *params) +{ + EVENT("(GLuint fence = %d, GLenum pname = 0x%X, GLint *params = 0x%0.8p)", fence, pname, params); + + Context *context = GetValidGlobalContext(); + if (context) + { + FenceNV *fenceObject = context->getFenceNV(fence); + + if (fenceObject == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + if (fenceObject->isFence() != GL_TRUE) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + switch (pname) + { + case GL_FENCE_STATUS_NV: + { + // GL_NV_fence spec: + // Once the status of a fence has been finished (via FinishFenceNV) or tested and the returned status is TRUE (via either TestFenceNV + // or GetFenceivNV querying the FENCE_STATUS_NV), the status remains TRUE until the next SetFenceNV of the fence. + GLboolean status = GL_TRUE; + if (fenceObject->getStatus() != GL_TRUE) + { + Error error = fenceObject->testFence(&status); + if (error.isError()) + { + context->recordError(error); + return; + } + } + *params = status; + break; + } + + case GL_FENCE_CONDITION_NV: + { + *params = static_cast<GLint>(fenceObject->getCondition()); + break; + } + + default: + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + } + } +} + +GLenum GL_APIENTRY GetGraphicsResetStatusEXT(void) +{ + EVENT("()"); + + Context *context = GetGlobalContext(); + + if (context) + { + return context->getResetStatus(); + } + + return GL_NO_ERROR; +} + +void GL_APIENTRY GetQueryivEXT(GLenum target, GLenum pname, GLint *params) +{ + EVENT("GLenum target = 0x%X, GLenum pname = 0x%X, GLint *params = 0x%0.8p)", target, pname, params); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidQueryType(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + + switch (pname) + { + case GL_CURRENT_QUERY_EXT: + params[0] = context->getState().getActiveQueryId(target); + break; + + default: + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + } +} + +void GL_APIENTRY GetQueryObjectuivEXT(GLuint id, GLenum pname, GLuint *params) +{ + EVENT("(GLuint id = %d, GLenum pname = 0x%X, GLuint *params = 0x%0.8p)", id, pname, params); + + Context *context = GetValidGlobalContext(); + if (context) + { + Query *queryObject = context->getQuery(id, false, GL_NONE); + + if (!queryObject) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + if (context->getState().getActiveQueryId(queryObject->getType()) == id) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + switch(pname) + { + case GL_QUERY_RESULT_EXT: + { + Error error = queryObject->getResult(params); + if (error.isError()) + { + context->recordError(error); + return; + } + } + break; + + case GL_QUERY_RESULT_AVAILABLE_EXT: + { + Error error = queryObject->isResultAvailable(params); + if (error.isError()) + { + context->recordError(error); + return; + } + } + break; + + default: + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + } +} + +void GL_APIENTRY GetTranslatedShaderSourceANGLE(GLuint shader, GLsizei bufsize, GLsizei* length, GLchar* source) +{ + EVENT("(GLuint shader = %d, GLsizei bufsize = %d, GLsizei* length = 0x%0.8p, GLchar* source = 0x%0.8p)", + shader, bufsize, length, source); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (bufsize < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + Shader *shaderObject = context->getShader(shader); + + if (!shaderObject) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + // Only returns extra info if ANGLE_GENERATE_SHADER_DEBUG_INFO is defined + shaderObject->getTranslatedSourceWithDebugInfo(bufsize, length, source); + } +} + +void GL_APIENTRY GetnUniformfvEXT(GLuint program, GLint location, GLsizei bufSize, GLfloat* params) +{ + EVENT("(GLuint program = %d, GLint location = %d, GLsizei bufSize = %d, GLfloat* params = 0x%0.8p)", + program, location, bufSize, params); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateGetnUniformfvEXT(context, program, location, bufSize, params)) + { + return; + } + + Program *programObject = context->getProgram(program); + ASSERT(programObject); + + programObject->getUniformfv(location, params); + } +} + +void GL_APIENTRY GetnUniformivEXT(GLuint program, GLint location, GLsizei bufSize, GLint* params) +{ + EVENT("(GLuint program = %d, GLint location = %d, GLsizei bufSize = %d, GLint* params = 0x%0.8p)", + program, location, bufSize, params); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateGetnUniformivEXT(context, program, location, bufSize, params)) + { + return; + } + + Program *programObject = context->getProgram(program); + ASSERT(programObject); + + programObject->getUniformiv(location, params); + } +} + +GLboolean GL_APIENTRY IsFenceNV(GLuint fence) +{ + EVENT("(GLuint fence = %d)", fence); + + Context *context = GetValidGlobalContext(); + if (context) + { + FenceNV *fenceObject = context->getFenceNV(fence); + + if (fenceObject == NULL) + { + return GL_FALSE; + } + + return fenceObject->isFence(); + } + + return GL_FALSE; +} + +GLboolean GL_APIENTRY IsQueryEXT(GLuint id) +{ + EVENT("(GLuint id = %d)", id); + + Context *context = GetValidGlobalContext(); + if (context) + { + return (context->getQuery(id, false, GL_NONE) != NULL) ? GL_TRUE : GL_FALSE; + } + + return GL_FALSE; +} + +void GL_APIENTRY ReadnPixelsEXT(GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, GLsizei bufSize, + GLvoid *data) +{ + EVENT("(GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d, " + "GLenum format = 0x%X, GLenum type = 0x%X, GLsizei bufSize = 0x%d, GLvoid *data = 0x%0.8p)", + x, y, width, height, format, type, bufSize, data); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (width < 0 || height < 0 || bufSize < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + if (!ValidateReadPixelsParameters(context, x, y, width, height, + format, type, &bufSize, data)) + { + return; + } + + Framebuffer *framebufferObject = context->getState().getReadFramebuffer(); + ASSERT(framebufferObject); + + Rectangle area(x, y, width, height); + Error error = framebufferObject->readPixels(context->getState(), area, format, type, data); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY RenderbufferStorageMultisampleANGLE(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height) +{ + EVENT("(GLenum target = 0x%X, GLsizei samples = %d, GLenum internalformat = 0x%X, GLsizei width = %d, GLsizei height = %d)", + target, samples, internalformat, width, height); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateRenderbufferStorageParametersANGLE(context, target, samples, internalformat, + width, height)) + { + return; + } + + Renderbuffer *renderbuffer = context->getState().getCurrentRenderbuffer(); + Error error = renderbuffer->setStorageMultisample(samples, internalformat, width, height); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY SetFenceNV(GLuint fence, GLenum condition) +{ + EVENT("(GLuint fence = %d, GLenum condition = 0x%X)", fence, condition); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (condition != GL_ALL_COMPLETED_NV) + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + + FenceNV *fenceObject = context->getFenceNV(fence); + + if (fenceObject == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + Error error = fenceObject->setFence(condition); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +GLboolean GL_APIENTRY TestFenceNV(GLuint fence) +{ + EVENT("(GLuint fence = %d)", fence); + + Context *context = GetValidGlobalContext(); + if (context) + { + FenceNV *fenceObject = context->getFenceNV(fence); + + if (fenceObject == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return GL_TRUE; + } + + if (fenceObject->isFence() != GL_TRUE) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return GL_TRUE; + } + + GLboolean result; + Error error = fenceObject->testFence(&result); + if (error.isError()) + { + context->recordError(error); + return GL_TRUE; + } + + return result; + } + + return GL_TRUE; +} + +void GL_APIENTRY TexStorage2DEXT(GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height) +{ + EVENT("(GLenum target = 0x%X, GLsizei levels = %d, GLenum internalformat = 0x%X, GLsizei width = %d, GLsizei height = %d)", + target, levels, internalformat, width, height); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!context->getExtensions().textureStorage) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + if (context->getClientVersion() < 3 && + !ValidateES2TexStorageParameters(context, target, levels, internalformat, width, height)) + { + return; + } + + if (context->getClientVersion() >= 3 && + !ValidateES3TexStorageParameters(context, target, levels, internalformat, width, height, 1)) + { + return; + } + + Extents size(width, height, 1); + Texture *texture = context->getTargetTexture(target); + Error error = texture->setStorage(target, levels, internalformat, size); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY VertexAttribDivisorANGLE(GLuint index, GLuint divisor) +{ + EVENT("(GLuint index = %d, GLuint divisor = %d)", index, divisor); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (index >= MAX_VERTEX_ATTRIBS) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + context->setVertexAttribDivisor(index, divisor); + } +} + +void GL_APIENTRY BlitFramebufferANGLE(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) +{ + EVENT("(GLint srcX0 = %d, GLint srcY0 = %d, GLint srcX1 = %d, GLint srcY1 = %d, " + "GLint dstX0 = %d, GLint dstY0 = %d, GLint dstX1 = %d, GLint dstY1 = %d, " + "GLbitfield mask = 0x%X, GLenum filter = 0x%X)", + srcX0, srcY0, srcX1, srcX1, dstX0, dstY0, dstX1, dstY1, mask, filter); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidateBlitFramebufferParameters(context, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, mask, filter, + true)) + { + return; + } + + Framebuffer *readFramebuffer = context->getState().getReadFramebuffer(); + ASSERT(readFramebuffer); + + Framebuffer *drawFramebuffer = context->getState().getDrawFramebuffer(); + ASSERT(drawFramebuffer); + + Rectangle srcArea(srcX0, srcY0, srcX1 - srcX0, srcY1 - srcY0); + Rectangle dstArea(dstX0, dstY0, dstX1 - dstX0, dstY1 - dstY0); + + Error error = drawFramebuffer->blit(context->getState(), srcArea, dstArea, mask, filter, readFramebuffer); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY TexImage3DOES(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, + GLint border, GLenum format, GLenum type, const GLvoid* pixels) +{ + EVENT("(GLenum target = 0x%X, GLint level = %d, GLenum internalformat = 0x%X, " + "GLsizei width = %d, GLsizei height = %d, GLsizei depth = %d, GLint border = %d, " + "GLenum format = 0x%X, GLenum type = 0x%x, const GLvoid* pixels = 0x%0.8p)", + target, level, internalformat, width, height, depth, border, format, type, pixels); + + UNIMPLEMENTED(); // FIXME +} + +void GL_APIENTRY GetProgramBinaryOES(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary) +{ + EVENT("(GLenum program = 0x%X, bufSize = %d, length = 0x%0.8p, binaryFormat = 0x%0.8p, binary = 0x%0.8p)", + program, bufSize, length, binaryFormat, binary); + + Context *context = GetValidGlobalContext(); + if (context) + { + Program *programObject = context->getProgram(program); + + if (!programObject || !programObject->isLinked()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + Error error = programObject->saveBinary(binaryFormat, binary, bufSize, length); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY ProgramBinaryOES(GLuint program, GLenum binaryFormat, const void *binary, GLint length) +{ + EVENT("(GLenum program = 0x%X, binaryFormat = 0x%x, binary = 0x%0.8p, length = %d)", + program, binaryFormat, binary, length); + + Context *context = GetValidGlobalContext(); + if (context) + { + const std::vector<GLenum> &programBinaryFormats = context->getCaps().programBinaryFormats; + if (std::find(programBinaryFormats.begin(), programBinaryFormats.end(), binaryFormat) == programBinaryFormats.end()) + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + + Program *programObject = context->getProgram(program); + if (!programObject) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + Error error = programObject->loadBinary(binaryFormat, binary, length); + if (error.isError()) + { + context->recordError(error); + return; + } + } +} + +void GL_APIENTRY DrawBuffersEXT(GLsizei n, const GLenum *bufs) +{ + EVENT("(GLenum n = %d, bufs = 0x%0.8p)", n, bufs); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (n < 0 || static_cast<GLuint>(n) > context->getCaps().maxDrawBuffers) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + ASSERT(context->getState().getDrawFramebuffer()); + + if (context->getState().getDrawFramebuffer()->id() == 0) + { + if (n != 1) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + if (bufs[0] != GL_NONE && bufs[0] != GL_BACK) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + } + else + { + for (int colorAttachment = 0; colorAttachment < n; colorAttachment++) + { + const GLenum attachment = GL_COLOR_ATTACHMENT0_EXT + colorAttachment; + if (bufs[colorAttachment] != GL_NONE && bufs[colorAttachment] != attachment) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + } + } + + Framebuffer *framebuffer = context->getState().getDrawFramebuffer(); + ASSERT(framebuffer); + + framebuffer->setDrawBuffers(n, bufs); + } +} + +void GL_APIENTRY GetBufferPointervOES(GLenum target, GLenum pname, void** params) +{ + EVENT("(GLenum target = 0x%X, GLenum pname = 0x%X, GLvoid** params = 0x%0.8p)", target, pname, params); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidBufferTarget(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + + if (pname != GL_BUFFER_MAP_POINTER) + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + + Buffer *buffer = context->getState().getTargetBuffer(target); + + if (!buffer || !buffer->isMapped()) + { + *params = NULL; + } + else + { + *params = buffer->getMapPointer(); + } + } +} + +void *GL_APIENTRY MapBufferOES(GLenum target, GLenum access) +{ + EVENT("(GLenum target = 0x%X, GLbitfield access = 0x%X)", target, access); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidBufferTarget(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return NULL; + } + + Buffer *buffer = context->getState().getTargetBuffer(target); + + if (buffer == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + if (access != GL_WRITE_ONLY_OES) + { + context->recordError(Error(GL_INVALID_ENUM)); + return NULL; + } + + if (buffer->isMapped()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + Error error = buffer->mapRange(0, buffer->getSize(), GL_MAP_WRITE_BIT); + if (error.isError()) + { + context->recordError(error); + return NULL; + } + + return buffer->getMapPointer(); + } + + return NULL; +} + +GLboolean GL_APIENTRY UnmapBufferOES(GLenum target) +{ + EVENT("(GLenum target = 0x%X)", target); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidBufferTarget(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return GL_FALSE; + } + + Buffer *buffer = context->getState().getTargetBuffer(target); + + if (buffer == NULL || !buffer->isMapped()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return GL_FALSE; + } + + // TODO: detect if we had corruption. if so, throw an error and return false. + + Error error = buffer->unmap(); + if (error.isError()) + { + context->recordError(error); + return GL_FALSE; + } + + return GL_TRUE; + } + + return GL_FALSE; +} + +void *GL_APIENTRY MapBufferRangeEXT(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access) +{ + EVENT("(GLenum target = 0x%X, GLintptr offset = %d, GLsizeiptr length = %d, GLbitfield access = 0x%X)", + target, offset, length, access); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (!ValidBufferTarget(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return NULL; + } + + if (offset < 0 || length < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return NULL; + } + + Buffer *buffer = context->getState().getTargetBuffer(target); + + if (buffer == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + // Check for buffer overflow + size_t offsetSize = static_cast<size_t>(offset); + size_t lengthSize = static_cast<size_t>(length); + + if (!rx::IsUnsignedAdditionSafe(offsetSize, lengthSize) || + offsetSize + lengthSize > static_cast<size_t>(buffer->getSize())) + { + context->recordError(Error(GL_INVALID_VALUE)); + return NULL; + } + + // Check for invalid bits in the mask + GLbitfield allAccessBits = GL_MAP_READ_BIT | + GL_MAP_WRITE_BIT | + GL_MAP_INVALIDATE_RANGE_BIT | + GL_MAP_INVALIDATE_BUFFER_BIT | + GL_MAP_FLUSH_EXPLICIT_BIT | + GL_MAP_UNSYNCHRONIZED_BIT; + + if (access & ~(allAccessBits)) + { + context->recordError(Error(GL_INVALID_VALUE)); + return NULL; + } + + if (length == 0 || buffer->isMapped()) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + // Check for invalid bit combinations + if ((access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + GLbitfield writeOnlyBits = GL_MAP_INVALIDATE_RANGE_BIT | + GL_MAP_INVALIDATE_BUFFER_BIT | + GL_MAP_UNSYNCHRONIZED_BIT; + + if ((access & GL_MAP_READ_BIT) != 0 && (access & writeOnlyBits) != 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + if ((access & GL_MAP_WRITE_BIT) == 0 && (access & GL_MAP_FLUSH_EXPLICIT_BIT) != 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return NULL; + } + + Error error = buffer->mapRange(offset, length, access); + if (error.isError()) + { + context->recordError(error); + return NULL; + } + + return buffer->getMapPointer(); + } + + return NULL; +} + +void GL_APIENTRY FlushMappedBufferRangeEXT(GLenum target, GLintptr offset, GLsizeiptr length) +{ + EVENT("(GLenum target = 0x%X, GLintptr offset = %d, GLsizeiptr length = %d)", target, offset, length); + + Context *context = GetValidGlobalContext(); + if (context) + { + if (offset < 0 || length < 0) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + if (!ValidBufferTarget(context, target)) + { + context->recordError(Error(GL_INVALID_ENUM)); + return; + } + + Buffer *buffer = context->getState().getTargetBuffer(target); + + if (buffer == NULL) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + if (!buffer->isMapped() || (buffer->getAccessFlags() & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) + { + context->recordError(Error(GL_INVALID_OPERATION)); + return; + } + + // Check for buffer overflow + size_t offsetSize = static_cast<size_t>(offset); + size_t lengthSize = static_cast<size_t>(length); + + if (!rx::IsUnsignedAdditionSafe(offsetSize, lengthSize) || + offsetSize + lengthSize > static_cast<size_t>(buffer->getMapLength())) + { + context->recordError(Error(GL_INVALID_VALUE)); + return; + } + + // We do not currently support a non-trivial implementation of FlushMappedBufferRange + } +} + +} |