LOVE/love
1
0
Fork 0
mirror of https://github.com/love2d/love.git synced 2026-08-16 00:02:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

Added GLSL ES 1.00 (OpenGL ES 2) shader support.

Browse Source 
--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2015-01-20 22:31:54 -04:00
parent 8067d42df2
commit 5df56d041a
9 changed files with 279 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/modules/graphics/opengl/OpenGL.cpp
+48 -16
View File
@@ -97,6 +97,11 @@ void OpenGL::setupContext()
glGetIntegerv(GL_SCISSOR_BOX, (GLint *) &state.scissor.x);
state.scissor.y = state.viewport.h - (state.scissor.y + state.scissor.h);
if (GLAD_VERSION_1_0)
glGetFloatv(GL_POINT_SIZE, &state.pointSize);
else
state.pointSize = 1.0f;
// Initialize multiple texture unit support for shaders.
state.textureUnits.clear();
@@ -290,27 +295,41 @@ void OpenGL::prepareDraw()
}
}
const float *curproj = matrices.projection.back().getElements();
const float *lastproj = state.lastProjectionMatrix.getElements();
const Matrix &curproj = matrices.projection.back();
const Matrix &curxform = matrices.transform.back();
// We only need to re-upload the projection matrix if it's changed.
if (memcmp(curproj, lastproj, sizeof(float) * 16) != 0)
if (GLAD_ES_VERSION_2_0 && shader)
{
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(curproj);
glMatrixMode(GL_MODELVIEW);
// Send built-in uniforms to the current shader.
shader->sendBuiltinMatrix(Shader::BUILTIN_TRANSFORM_MATRIX, 4, curxform.getElements(), 1);
shader->sendBuiltinMatrix(Shader::BUILTIN_PROJECTION_MATRIX, 4, curproj.getElements(), 1);
state.lastProjectionMatrix = matrices.projection.back();
Matrix tp_matrix(curproj * curxform);
shader->sendBuiltinMatrix(Shader::BUILTIN_TRANSFORM_PROJECTION_MATRIX, 4, tp_matrix.getElements(), 1);
shader->sendBuiltinFloat(Shader::BUILTIN_POINT_SIZE, 1, &state.pointSize, 1);
}
const float *curxform = matrices.transform.back().getElements();
const float *lastxform = state.lastTransformMatrix.getElements();
// Same with the transform matrix.
if (memcmp(curxform, lastxform, sizeof(float) * 16) != 0)
else if (GLAD_VERSION_1_0)
{
glLoadMatrixf(curxform);
state.lastTransformMatrix = matrices.transform.back();
const Matrix &lastproj = state.lastProjectionMatrix;
const Matrix &lastxform = state.lastTransformMatrix;
// We only need to re-upload the projection matrix if it's changed.
if (memcmp(curproj.getElements(), lastproj.getElements(), sizeof(float) * 16) != 0)
{
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(curproj.getElements());
glMatrixMode(GL_MODELVIEW);
state.lastProjectionMatrix = matrices.projection.back();
}
// Same with the transform matrix.
if (memcmp(curxform.getElements(), lastxform.getElements(), sizeof(float) * 16) != 0)
{
glLoadMatrixf(curxform.getElements());
state.lastTransformMatrix = matrices.transform.back();
}
}
}
@@ -450,6 +469,19 @@ OpenGL::BlendState OpenGL::getBlendState() const
return state.blend;
}
void OpenGL::setPointSize(float size)
{
if (GLAD_VERSION_1_0)
glPointSize(size);
state.pointSize = size;
}
float OpenGL::getPointSize() const
{
return state.pointSize;
}
GLuint OpenGL::getDefaultFBO() const
{
return state.defaultFBO;