Differential D6922 Diff 22125 source/blender/windowmanager/intern/wm_stereo.c

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source/blender/windowmanager/intern/wm_stereo.c

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	#include "WM_types.h"			#include "WM_types.h"
	#include "wm.h"			#include "wm.h"
	#include "wm_draw.h"			#include "wm_draw.h"
	#include "wm_window.h"			#include "wm_window.h"

	#include "UI_interface.h"			#include "UI_interface.h"
	#include "UI_resources.h"			#include "UI_resources.h"

	static eGPUInterlaceShader interlace_gpu_id_from_type(eStereo3dInterlaceType interlace_type)
	{
	switch (interlace_type) {
	case S3D_INTERLACE_ROW:
	return GPU_SHADER_INTERLACE_ROW;
	case S3D_INTERLACE_COLUMN:
	return GPU_SHADER_INTERLACE_COLUMN;
	case S3D_INTERLACE_CHECKERBOARD:
	default:
	return GPU_SHADER_INTERLACE_CHECKER;
	}
	}

	void wm_stereo3d_draw_interlace(wmWindow win, ARegion ar)
	{
	bool swap = (win->stereo3d_format->flag & S3D_INTERLACE_SWAP) != 0;
	enum eStereo3dInterlaceType interlace_type = win->stereo3d_format->interlace_type;

	/* wmOrtho for the screen has this same offset */
	float halfx = GLA_PIXEL_OFS / ar->winx;
	float halfy = GLA_PIXEL_OFS / ar->winy;

	GPUVertFormat *format = immVertexFormat();
	uint texcoord = GPU_vertformat_attr_add(format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);

	/* leave GL_TEXTURE0 as the latest active texture */
	for (int view = 1; view >= 0; view--) {
	GPUTexture *texture = wm_draw_region_texture(ar, view);
	glActiveTexture(GL_TEXTURE0 + view);
	glBindTexture(GL_TEXTURE_2D, GPU_texture_opengl_bindcode(texture));
	}

	immBindBuiltinProgram(GPU_SHADER_2D_IMAGE_INTERLACE);
	immUniform1i("image_a", (swap) ? 1 : 0);
	immUniform1i("image_b", (swap) ? 0 : 1);

	immUniform1i("interlace_id", interlace_gpu_id_from_type(interlace_type));

	immBegin(GPU_PRIM_TRI_FAN, 4);

	immAttr2f(texcoord, halfx, halfy);
	immVertex2f(pos, ar->winrct.xmin, ar->winrct.ymin);

	immAttr2f(texcoord, 1.0f + halfx, halfy);
	immVertex2f(pos, ar->winrct.xmax + 1, ar->winrct.ymin);

	immAttr2f(texcoord, 1.0f + halfx, 1.0f + halfy);
	immVertex2f(pos, ar->winrct.xmax + 1, ar->winrct.ymax + 1);

	immAttr2f(texcoord, halfx, 1.0f + halfy);
	immVertex2f(pos, ar->winrct.xmin, ar->winrct.ymax + 1);

	immEnd();
	immUnbindProgram();

	for (int view = 1; view >= 0; view--) {
	glActiveTexture(GL_TEXTURE0 + view);
	glBindTexture(GL_TEXTURE_2D, 0);
	}
	}

	void wm_stereo3d_draw_anaglyph(wmWindow win, ARegion ar)
	{
	for (int view = 0; view < 2; view++) {
	int bit = view + 1;

	switch (win->stereo3d_format->anaglyph_type) {
	case S3D_ANAGLYPH_REDCYAN:
	glColorMask((1 & bit) ? GL_TRUE : GL_FALSE,
	(2 & bit) ? GL_TRUE : GL_FALSE,
	(2 & bit) ? GL_TRUE : GL_FALSE,
	GL_FALSE);
	break;
	case S3D_ANAGLYPH_GREENMAGENTA:
	glColorMask((2 & bit) ? GL_TRUE : GL_FALSE,
	(1 & bit) ? GL_TRUE : GL_FALSE,
	(2 & bit) ? GL_TRUE : GL_FALSE,
	GL_FALSE);
	break;
	case S3D_ANAGLYPH_YELLOWBLUE:
	glColorMask((1 & bit) ? GL_TRUE : GL_FALSE,
	(1 & bit) ? GL_TRUE : GL_FALSE,
	(2 & bit) ? GL_TRUE : GL_FALSE,
	GL_FALSE);
	break;
	}

	wm_draw_region_blend(ar, view, false);
	}

	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
	}

	void wm_stereo3d_draw_sidebyside(wmWindow *win, int view)			void wm_stereo3d_draw_sidebyside(wmWindow *win, int view)
	{			{
	bool cross_eyed = (win->stereo3d_format->flag & S3D_SIDEBYSIDE_CROSSEYED) != 0;			bool cross_eyed = (win->stereo3d_format->flag & S3D_SIDEBYSIDE_CROSSEYED) != 0;

	GPUVertFormat *format = immVertexFormat();			GPUVertFormat *format = immVertexFormat();
	uint texcoord = GPU_vertformat_attr_add(format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);			uint texcoord = GPU_vertformat_attr_add(format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);			uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);

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