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Two previously-stubbed GL 3.3 Core entry points. glMultiDrawArrays: mirrors the existing glMultiDrawElements(BaseVertex) architecture end to end -- a new MultiDrawArrays backend function-table slot dispatched from the frontend after program/primitive-mode validation (plus a drawcount < 0 -> GL_INVALID_VALUE guard). - DirectGLES: PrepareForDraw once, then loop native glDrawArrays with the same per-range client-side array upload the single DrawArrays does. - DirectVulkan: build a MultiDrawCmd payload and hand it to a new VulkanRenderer::MultiDrawArrays, which does one SetupDraw over the union of the sub-draw vertex ranges and then a vkCmdDraw per range (mirrors VulkanRenderer::MultiDrawElements). glGetBufferSubData: reads a range of the bound buffer's CPU shadow into client memory via a new BufferObject::DownloadSubData, with the same validation shape as BufferSubData (INVALID_VALUE for negative/overflowing range, INVALID_OPERATION for no bound buffer or a non-persistent mapped buffer). The shadow reflects CPU writes and backend write-backs but not arbitrary GPU-side writes, which is documented on the method. Tests: 2 BufferTest cases for glGetBufferSubData (round-trip read of a middle range and the whole buffer, plus out-of-range/negative/no-buffer errors). BufferTest 32/32, SanityTest 30/30, VertexArrayTest 42/42; library builds clean. (The glMultiDrawArrays draw paths are not runtime-testable on this host and are compile-verified against the tested MultiDrawElements pattern.)
49 lines
3.4 KiB
C++
49 lines
3.4 KiB
C++
// MobileGL - MobileGL/MG_Impl/GLImpl/Drawing/GL_Drawing.h
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// Copyright (c) 2025-2026 MobileGL-Dev
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// Licensed under the GNU Lesser General Public License v3.0:
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// https://www.gnu.org/licenses/gpl-3.0.txt
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// https://www.gnu.org/licenses/lgpl-3.0.txt
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// SPDX-License-Identifier: LGPL-3.0-only
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// End of Source File Header
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#pragma once
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#include <Includes.h>
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namespace MobileGL::MG_Impl::GLImpl {
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/* @INSERTION_POINT:FUNCTION_DECLARATION@ */
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void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
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void DispatchComputeIndirect(GLintptr indirect);
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void MemoryBarrier(GLbitfield barriers);
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void MemoryBarrierByRegion(GLbitfield barriers);
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void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride);
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void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
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void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
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GLsizei maxdrawcount, GLsizei stride);
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void MultiDrawArraysIndirectCount(GLenum mode, const void* indirect, GLintptr drawcount,
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GLsizei maxdrawcount, GLsizei stride);
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void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
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const void* indices, GLint basevertex);
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void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices);
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void DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
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GLsizei instancecount, GLint basevertex, GLuint baseinstance);
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void DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices,
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GLsizei instancecount, GLint basevertex);
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void DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
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GLsizei instancecount, GLuint baseinstance);
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void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount);
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void DrawElementsIndirect(GLenum mode, GLenum type, const void* indirect);
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void DrawArraysInstancedBaseInstance(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
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GLuint baseinstance);
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void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
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void DrawArraysIndirect(GLenum mode, const void* indirect);
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void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices, GLint basevertex);
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void DrawArrays(GLenum mode, GLint first, GLsizei count);
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void MultiDrawArrays(GLenum mode, const GLint* first, const GLsizei* count, GLsizei drawcount);
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void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const void* const* indices,
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GLsizei drawcount);
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void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei* count, GLenum type, const void* const* indices,
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GLsizei drawcount, const GLint* basevertex);
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void Clear(GLbitfield mask);
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void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices);
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} // namespace MobileGL::MG_Impl::GLImpl
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