Differential D8794 Diff 28645 source/blender/gpu/opengl/gl_shader.cc

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source/blender/gpu/opengl/gl_shader.cc

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/** \file		/** \file
* \ingroup gpu		* \ingroup gpu
*/		*/

#include "BKE_global.h"		#include "BKE_global.h"

#include "BLI_string.h"		#include "BLI_string.h"

#include "GPU_extensions.h"
#include "GPU_platform.h"		#include "GPU_platform.h"

		#include "gl_backend.hh"
		#include "gl_vertex_buffer.hh"

#include "gl_shader.hh"		#include "gl_shader.hh"
#include "gl_shader_interface.hh"		#include "gl_shader_interface.hh"

using namespace blender;		using namespace blender;
using namespace blender::gpu;		using namespace blender::gpu;

/* -------------------------------------------------------------------- */		/* -------------------------------------------------------------------- */
/** \name Creation / Destruction		/** \name Creation / Destruction
▲ Show 20 Lines • Show All 66 Lines • ▼ Show 20 Lines	if (!GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_ANY, GPU_DRIVER_ANY) \|\| GLEW_VERSION_4_0) {
STR_CONCAT(patch, slen, "#define GPU_ARB_texture_gather\n");		STR_CONCAT(patch, slen, "#define GPU_ARB_texture_gather\n");
}		}
}		}
}		}
if (GLEW_ARB_shader_draw_parameters) {		if (GLEW_ARB_shader_draw_parameters) {
STR_CONCAT(patch, slen, "#extension GL_ARB_shader_draw_parameters : enable\n");		STR_CONCAT(patch, slen, "#extension GL_ARB_shader_draw_parameters : enable\n");
STR_CONCAT(patch, slen, "#define GPU_ARB_shader_draw_parameters\n");		STR_CONCAT(patch, slen, "#define GPU_ARB_shader_draw_parameters\n");
}		}
if (GPU_arb_texture_cube_map_array_is_supported()) {		if (GLContext::texture_cube_map_array_support) {
STR_CONCAT(patch, slen, "#extension GL_ARB_texture_cube_map_array : enable\n");		STR_CONCAT(patch, slen, "#extension GL_ARB_texture_cube_map_array : enable\n");
STR_CONCAT(patch, slen, "#define GPU_ARB_texture_cube_map_array\n");		STR_CONCAT(patch, slen, "#define GPU_ARB_texture_cube_map_array\n");
}		}

/* Derivative sign can change depending on implementation. */		/* Derivative sign can change depending on implementation. */
float derivatives[2];		STR_CONCATF(patch, slen, "#define DFDX_SIGN %1.1f\n", GLContext::derivative_signs[0]);
GPU_get_dfdy_factors(derivatives);		STR_CONCATF(patch, slen, "#define DFDY_SIGN %1.1f\n", GLContext::derivative_signs[1]);
STR_CONCATF(patch, slen, "#define DFDX_SIGN %1.1f\n", derivatives[0]);
STR_CONCATF(patch, slen, "#define DFDY_SIGN %1.1f\n", derivatives[1]);

BLI_assert(slen < sizeof(patch));		BLI_assert(slen < sizeof(patch));
return patch;		return patch;
}		}

/* Create, compile and attach the shader stage to the shader program. */		/* Create, compile and attach the shader stage to the shader program. */
GLuint GLShader::create_shader_stage(GLenum gl_stage, MutableSpan<const char *> sources)		GLuint GLShader::create_shader_stage(GLenum gl_stage, MutableSpan<const char *> sources)
{		{
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void GLShader::transform_feedback_names_set(Span<const char *> name_list,		void GLShader::transform_feedback_names_set(Span<const char *> name_list,
const eGPUShaderTFBType geom_type)		const eGPUShaderTFBType geom_type)
{		{
glTransformFeedbackVaryings(		glTransformFeedbackVaryings(
shader_program_, name_list.size(), name_list.data(), GL_INTERLEAVED_ATTRIBS);		shader_program_, name_list.size(), name_list.data(), GL_INTERLEAVED_ATTRIBS);
transform_feedback_type_ = geom_type;		transform_feedback_type_ = geom_type;
}		}

bool GLShader::transform_feedback_enable(GPUVertBuf *buf)		bool GLShader::transform_feedback_enable(GPUVertBuf *buf_)
{		{
if (transform_feedback_type_ == GPU_SHADER_TFB_NONE) {		if (transform_feedback_type_ == GPU_SHADER_TFB_NONE) {
return false;		return false;
}		}

BLI_assert(buf->vbo_id != 0);		GLVertBuf buf = static_cast<GLVertBuf >(unwrap(buf_));

		BLI_assert(buf->vbo_id_ != 0);

glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buf->vbo_id);		glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, buf->vbo_id_);

switch (transform_feedback_type_) {		switch (transform_feedback_type_) {
case GPU_SHADER_TFB_POINTS:		case GPU_SHADER_TFB_POINTS:
glBeginTransformFeedback(GL_POINTS);		glBeginTransformFeedback(GL_POINTS);
break;		break;
case GPU_SHADER_TFB_LINES:		case GPU_SHADER_TFB_LINES:
glBeginTransformFeedback(GL_LINES);		glBeginTransformFeedback(GL_LINES);
break;		break;
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