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LibGL: Implement glRasterPos2i

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This commit is contained in:
Jelle Raaijmakers 2021-12-01 15:53:55 +01:00 • committed by Andreas Kling
parent 78d0674228
commit 4eb6295a57
6 changed files with 41 additions and 1 deletions
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1
Userland/Libraries/LibGL/CMakeLists.txt
View file

@ -7,6 +7,7 @@ set(SOURCES
GLBlend.cpp
GLColor.cpp
GLContext.cpp
GLDraw.cpp
GLFog.cpp
GLLights.cpp
GLLists.cpp

1
Userland/Libraries/LibGL/GL/gl.h
View file

@ -451,6 +451,7 @@ GLAPI void glStencilOp(GLenum sfail, GLenum dpfail, GLenum dppass);
GLAPI void glStencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
GLAPI void glNormal3f(GLfloat nx, GLfloat ny, GLfloat nz);
GLAPI void glNormal3fv(GLfloat const* v);
GLAPI void glRasterPos2i(GLint x, GLint y);
#ifdef __cplusplus
}

1
Userland/Libraries/LibGL/GLContext.h
View file

@ -94,6 +94,7 @@ public:
virtual void gl_stencil_func_separate(GLenum face, GLenum func, GLint ref, GLuint mask) = 0;
virtual void gl_stencil_op_separate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) = 0;
virtual void gl_normal(GLfloat nx, GLfloat ny, GLfloat nz) = 0;
virtual void gl_raster_pos(GLfloat x, GLfloat y, GLfloat z, GLfloat w) = 0;
virtual void present() = 0;
};

15
Userland/Libraries/LibGL/GLDraw.cpp Normal file
View file

@ -0,0 +1,15 @@
/*
* Copyright (c) 2021, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "GL/gl.h"
#include "GLContext.h"
extern GL::GLContext* g_gl_context;
void glRasterPos2i(GLint x, GLint y)
{
g_gl_context->gl_raster_pos(static_cast<float>(x), static_cast<float>(y), 0.0f, 1.0f);
}

9
Userland/Libraries/LibGL/SoftwareGLContext.cpp
View file

@ -2248,6 +2248,15 @@ void SoftwareGLContext::gl_normal(GLfloat nx, GLfloat ny, GLfloat nz)
m_current_vertex_normal = { nx, ny, nz };
}
void SoftwareGLContext::gl_raster_pos(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_raster_pos, x, y, z, w);
RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
m_current_raster_position.window_coordinates = { x, y, z };
m_current_raster_position.clip_coordinate_value = w;
}
void SoftwareGLContext::present()
{
m_rasterizer.blit_to(*m_frontbuffer);

15
Userland/Libraries/LibGL/SoftwareGLContext.h
View file

@ -105,6 +105,7 @@ public:
virtual void gl_stencil_func_separate(GLenum face, GLenum func, GLint ref, GLuint mask) override;
virtual void gl_stencil_op_separate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) override;
virtual void gl_normal(GLfloat nx, GLfloat ny, GLfloat nz) override;
virtual void gl_raster_pos(GLfloat x, GLfloat y, GLfloat z, GLfloat w) override;
virtual void present() override;
private:
@ -269,7 +270,8 @@ private:
decltype(&SoftwareGLContext::gl_scissor),
decltype(&SoftwareGLContext::gl_stencil_func_separate),
decltype(&SoftwareGLContext::gl_stencil_op_separate),
decltype(&SoftwareGLContext::gl_normal)>;
decltype(&SoftwareGLContext::gl_normal),
decltype(&SoftwareGLContext::gl_raster_pos)>;
using ExtraSavedArguments = Variant<
FloatMatrix4x4>;
@ -305,6 +307,17 @@ private:
u8 m_pack_alignment { 4 };
GLsizei m_unpack_row_length { 0 };
u8 m_unpack_alignment { 4 };
struct RasterPosition {
FloatVector3 window_coordinates { 0.0f, 0.0f, 0.0f };
float clip_coordinate_value { 1.0f };
float eye_coordinate_distance { 0.0f };
bool valid { true };
FloatVector4 color_rgba { 1.0f, 1.0f, 1.0f, 1.0f };
float color_index { 1.0f };
FloatVector4 texture_coordinates { 0.0f, 0.0f, 0.0f, 1.0f };
};
RasterPosition m_current_raster_position;
};
}