gl_rasterizer: Use the least generic OpenGL draw function possible
This may help some implementations.
This commit is contained in:
parent
8b9a56033a
commit
336a4f8e99
@ -611,7 +611,7 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
|
||||
|
||||
// Setup shaders and their used resources.
|
||||
texture_cache.GuardSamplers(true);
|
||||
const auto primitive_mode = MaxwellToGL::PrimitiveTopology(gpu.regs.draw.topology);
|
||||
const GLenum primitive_mode = MaxwellToGL::PrimitiveTopology(gpu.regs.draw.topology);
|
||||
SetupShaders(primitive_mode);
|
||||
texture_cache.GuardSamplers(false);
|
||||
|
||||
@ -642,18 +642,38 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
|
||||
const GLsizei num_instances =
|
||||
static_cast<GLsizei>(is_instanced ? gpu.mme_draw.instance_count : 1);
|
||||
if (is_indexed) {
|
||||
const GLenum index_format = MaxwellToGL::IndexFormat(gpu.regs.index_array.format);
|
||||
const GLint base_vertex = static_cast<GLint>(gpu.regs.vb_element_base);
|
||||
const GLsizei num_vertices = static_cast<GLsizei>(gpu.regs.index_array.count);
|
||||
glDrawElementsInstancedBaseVertexBaseInstance(
|
||||
primitive_mode, num_vertices, index_format,
|
||||
reinterpret_cast<const void*>(index_buffer_offset), num_instances, base_vertex,
|
||||
const GLvoid* offset = reinterpret_cast<const GLvoid*>(index_buffer_offset);
|
||||
const GLenum format = MaxwellToGL::IndexFormat(gpu.regs.index_array.format);
|
||||
if (num_instances == 1 && base_instance == 0 && base_vertex == 0) {
|
||||
glDrawElements(primitive_mode, num_vertices, format, offset);
|
||||
} else if (num_instances == 1 && base_instance == 0) {
|
||||
glDrawElementsBaseVertex(primitive_mode, num_vertices, format, offset, base_vertex);
|
||||
} else if (base_vertex == 0 && base_instance == 0) {
|
||||
glDrawElementsInstanced(primitive_mode, num_vertices, format, offset, num_instances);
|
||||
} else if (base_vertex == 0) {
|
||||
glDrawElementsInstancedBaseInstance(primitive_mode, num_vertices, format, offset,
|
||||
num_instances, base_instance);
|
||||
} else if (base_instance == 0) {
|
||||
glDrawElementsInstancedBaseVertex(primitive_mode, num_vertices, format, offset,
|
||||
num_instances, base_vertex);
|
||||
} else {
|
||||
glDrawElementsInstancedBaseVertexBaseInstance(primitive_mode, num_vertices, format,
|
||||
offset, num_instances, base_vertex,
|
||||
base_instance);
|
||||
}
|
||||
} else {
|
||||
const GLint base_vertex = static_cast<GLint>(gpu.regs.vertex_buffer.first);
|
||||
const GLsizei num_vertices = static_cast<GLsizei>(gpu.regs.vertex_buffer.count);
|
||||
glDrawArraysInstancedBaseInstance(primitive_mode, base_vertex, num_vertices, num_instances,
|
||||
base_instance);
|
||||
if (num_instances == 1 && base_instance == 0) {
|
||||
glDrawArrays(primitive_mode, base_vertex, num_vertices);
|
||||
} else if (base_instance == 0) {
|
||||
glDrawArraysInstanced(primitive_mode, base_vertex, num_vertices, num_instances);
|
||||
} else {
|
||||
glDrawArraysInstancedBaseInstance(primitive_mode, base_vertex, num_vertices,
|
||||
num_instances, base_instance);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user