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cleaning up render pass

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This commit is contained in:
Noel Berry 2020-12-24 00:33:38 -08:00
parent 8c0ef3e769
commit dbafc6ec65
3 changed files with 55 additions and 83 deletions
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2
private/blah/internal/graphics_backend.h
View File

@ -29,7 +29,7 @@ namespace Blah
void after_render();
// Performs a draw call
void render(RenderCall* call);
void render(const RenderCall& call);
// Clears a buffer
void clear(const FrameBufferRef& target, uint32_t rgba);

84
private/blah/internal/graphics_backend_gl.cpp
View File

@ -1227,11 +1227,11 @@ namespace Blah
return MeshRef(resource);
}
void GraphicsBackend::render(RenderCall* call)
void GraphicsBackend::render(const RenderCall& call)
{
// Bind the Target
Point size;
if (!call->target)
if (!call.target)
{
gl.BindFramebuffer(GL_FRAMEBUFFER, 0);
size.x = App::draw_width();
@ -1239,15 +1239,15 @@ namespace Blah
}
else
{
auto framebuffer = (OpenGL_FrameBuffer*)call->target.get();
auto framebuffer = (OpenGL_FrameBuffer*)call.target.get();
gl.BindFramebuffer(GL_FRAMEBUFFER, framebuffer->gl_id());
size.x = call->target->width();
size.y = call->target->height();
size.x = call.target->width();
size.y = call.target->height();
}
auto shader_ref = call->material->shader();
auto shader_ref = call.material->shader();
auto shader = (OpenGL_Shader*)shader_ref.get();
auto mesh = (OpenGL_Mesh*)call->mesh.get();
auto mesh = (OpenGL_Mesh*)call.mesh.get();
// Use the Shader
// TODO: I don't love how material values are assigned or set here
@ -1269,7 +1269,7 @@ namespace Blah
{
for (int n = 0; n < uniform.array_length; n++)
{
auto tex = call->material->get_texture(i, n);
auto tex = call.material->get_texture(i, n);
gl.ActiveTexture(GL_TEXTURE0 + texture_slot);
@ -1291,60 +1291,60 @@ namespace Blah
// Float
else if (uniform.type == UniformType::Float)
{
gl.Uniform1fv(location, (GLint)uniform.array_length, (const GLfloat*)call->material->get_value(i));
gl.Uniform1fv(location, (GLint)uniform.array_length, (const GLfloat*)call.material->get_value(i));
}
// Float2
else if (uniform.type == UniformType::Float2)
{
gl.Uniform2fv(location, (GLint)uniform.array_length, (const GLfloat*)call->material->get_value(i));
gl.Uniform2fv(location, (GLint)uniform.array_length, (const GLfloat*)call.material->get_value(i));
}
// Float3
else if (uniform.type == UniformType::Float3)
{
gl.Uniform3fv(location, (GLint)uniform.array_length, (const GLfloat*)call->material->get_value(i));
gl.Uniform3fv(location, (GLint)uniform.array_length, (const GLfloat*)call.material->get_value(i));
}
// Float4
else if (uniform.type == UniformType::Float4)
{
gl.Uniform4fv(location, (GLint)uniform.array_length, (const GLfloat*)call->material->get_value(i));
gl.Uniform4fv(location, (GLint)uniform.array_length, (const GLfloat*)call.material->get_value(i));
}
// Matrix3x2
else if (uniform.type == UniformType::Mat3x2)
{
gl.UniformMatrix3x2fv(location, (GLint)uniform.array_length, 0, (const GLfloat*)call->material->get_value(i));
gl.UniformMatrix3x2fv(location, (GLint)uniform.array_length, 0, (const GLfloat*)call.material->get_value(i));
}
// Matrix4x4
else if (uniform.type == UniformType::Mat4x4)
{
gl.UniformMatrix4fv(location, (GLint)uniform.array_length, 0, (const GLfloat*)call->material->get_value(i));
gl.UniformMatrix4fv(location, (GLint)uniform.array_length, 0, (const GLfloat*)call.material->get_value(i));
}
}
}
// Blend Mode
{
GLenum colorOp = gl_get_blend_func(call->blend.colorOp);
GLenum alphaOp = gl_get_blend_func(call->blend.alphaOp);
GLenum colorSrc = gl_get_blend_factor(call->blend.colorSrc);
GLenum colorDst = gl_get_blend_factor(call->blend.colorDst);
GLenum alphaSrc = gl_get_blend_factor(call->blend.alphaSrc);
GLenum alphaDst = gl_get_blend_factor(call->blend.alphaDst);
GLenum colorOp = gl_get_blend_func(call.blend.colorOp);
GLenum alphaOp = gl_get_blend_func(call.blend.alphaOp);
GLenum colorSrc = gl_get_blend_factor(call.blend.colorSrc);
GLenum colorDst = gl_get_blend_factor(call.blend.colorDst);
GLenum alphaSrc = gl_get_blend_factor(call.blend.alphaSrc);
GLenum alphaDst = gl_get_blend_factor(call.blend.alphaDst);
gl.Enable(GL_BLEND);
gl.BlendEquationSeparate(colorOp, alphaOp);
gl.BlendFuncSeparate(colorSrc, colorDst, alphaSrc, alphaDst);
gl.ColorMask(
((int)call->blend.mask & (int)BlendMask::Red),
((int)call->blend.mask & (int)BlendMask::Green),
((int)call->blend.mask & (int)BlendMask::Blue),
((int)call->blend.mask & (int)BlendMask::Alpha));
((int)call.blend.mask & (int)BlendMask::Red),
((int)call.blend.mask & (int)BlendMask::Green),
((int)call.blend.mask & (int)BlendMask::Blue),
((int)call.blend.mask & (int)BlendMask::Alpha));
unsigned char r = call->blend.rgba >> 24;
unsigned char g = call->blend.rgba >> 16;
unsigned char b = call->blend.rgba >> 8;
unsigned char a = call->blend.rgba;
unsigned char r = call.blend.rgba >> 24;
unsigned char g = call.blend.rgba >> 16;
unsigned char b = call.blend.rgba >> 8;
unsigned char a = call.blend.rgba;
gl.BlendColor(
r / 255.0f,
@ -1355,7 +1355,7 @@ namespace Blah
// Depth Function
{
if (call->depth == Compare::None)
if (call.depth == Compare::None)
{
gl.Disable(GL_DEPTH_TEST);
}
@ -1363,7 +1363,7 @@ namespace Blah
{
gl.Enable(GL_DEPTH_TEST);
switch (call->depth)
switch (call.depth)
{
case Compare::None: break;
case Compare::Always:
@ -1396,7 +1396,7 @@ namespace Blah
// Cull Mode
{
if (call->cull == Cull::None)
if (call.cull == Cull::None)
{
gl.Disable(GL_CULL_FACE);
}
@ -1404,9 +1404,9 @@ namespace Blah
{
gl.Enable(GL_CULL_FACE);
if (call->cull == Cull::Back)
if (call.cull == Cull::Back)
gl.CullFace(GL_BACK);
else if (call->cull == Cull::Front)
else if (call.cull == Cull::Front)
gl.CullFace(GL_FRONT);
else
gl.CullFace(GL_FRONT_AND_BACK);
@ -1415,7 +1415,7 @@ namespace Blah
// Viewport
{
Rect viewport = call->viewport;
Rect viewport = call.viewport;
viewport.y = size.y - viewport.y - viewport.h;
gl.Viewport((GLint)viewport.x, (GLint)viewport.y, (GLint)viewport.w, (GLint)viewport.h);
@ -1423,13 +1423,13 @@ namespace Blah
// Scissor
{
if (!call->has_scissor)
if (!call.has_scissor)
{
gl.Disable(GL_SCISSOR_TEST);
}
else
{
Rect scissor = call->scissor;
Rect scissor = call.scissor;
scissor.y = size.y - scissor.y - scissor.h;
if (scissor.w < 0)
@ -1446,22 +1446,22 @@ namespace Blah
{
gl.BindVertexArray(mesh->gl_id());
if (call->instance_count > 0)
if (call.instance_count > 0)
{
gl.DrawElementsInstanced(
GL_TRIANGLES,
(GLint)(call->index_count),
(GLint)(call.index_count),
GL_UNSIGNED_INT,
(void*)(sizeof(int) * call->index_start),
(GLint)call->instance_count);
(void*)(sizeof(int) * call.index_start),
(GLint)call.instance_count);
}
else
{
gl.DrawElements(
GL_TRIANGLES,
(GLint)(call->index_count),
(GLint)(call.index_count),
GL_UNSIGNED_INT,
(void*)(sizeof(int) * call->index_start));
(void*)(sizeof(int) * call.index_start));
}
gl.BindVertexArray(0);

52
public/blah/graphics/graphics.cpp
View File

@ -221,59 +221,31 @@ void Graphics::render(const RenderCall& render_call)
call.instance_count = instance_count;
}
// get the total drawable size
Point draw_size;
if (!call.target)
draw_size = Point(App::draw_width(), App::draw_height());
else
draw_size = Point(call.target->width(), call.target->height());
// Validate Viewport
if (!call.has_viewport)
{
Point drawSize;
if (!call.target)
drawSize = Point(App::draw_width(), App::draw_height());
else
drawSize = Point(call.target->width(), call.target->height());
call.viewport.x = 0;
call.viewport.y = 0;
call.viewport.w = (float)drawSize.x;
call.viewport.h = (float)drawSize.y;
call.viewport.w = (float)draw_size.x;
call.viewport.h = (float)draw_size.y;
}
else
{
if (call.viewport.x < 0)
{
call.viewport.w += call.viewport.x;
call.viewport.x = 0;
}
if (call.viewport.y < 0)
{
call.viewport.h += call.viewport.y;
call.viewport.y = 0;
}
if (call.viewport.w < 0)
call.viewport.w = 0;
if (call.viewport.h < 0)
call.viewport.h = 0;
call.viewport = call.viewport.overlap_rect(Rect(0, 0, draw_size.x, draw_size.y));
}
// Validate Scissor
if (call.has_scissor)
{
if (call.scissor.x < 0)
{
call.scissor.w += call.scissor.x;
call.scissor.x = 0;
}
if (call.scissor.y < 0)
{
call.scissor.h += call.scissor.y;
call.scissor.y = 0;
}
if (call.scissor.w < 0)
call.scissor.w = 0;
if (call.scissor.h < 0)
call.scissor.h = 0;
}
call.scissor = call.scissor.overlap_rect(Rect(0, 0, draw_size.x, draw_size.y));
GraphicsBackend::render(&call);
GraphicsBackend::render(call);
}
void Graphics::clear(const FrameBufferRef& target, uint32_t rgba)